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
  23 use Digest::MD5 qw(md5_base64);
  24 use Storable qw(thaw freeze);
  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::Branch; # GetBranches
  32 use C4::VirtualShelves;
  33 use POSIX qw/strftime/;
  34 use List::MoreUtils qw/ any /;
  35
  36 # use utf8;
  37 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $debug $ldap $cas $caslogout);
  38
  39 BEGIN {
  40     sub psgi_env { any { /^psgi\./ } keys %ENV }
  41     sub safe_exit {
  42     if ( psgi_env ) { die 'psgi:exit' }
  43     else { exit }
  44     }
  45     $VERSION     = 3.07.00.049;   # set version for version checking
  46
  47     $debug       = $ENV{DEBUG};
  48     @ISA         = qw(Exporter);
  49     @EXPORT      = qw(&checkauth &get_template_and_user &haspermission &get_user_subpermissions);
  50     @EXPORT_OK   = qw(&check_api_auth &get_session &check_cookie_auth &checkpw &get_all_subpermissions &get_user_subpermissions);
  51     %EXPORT_TAGS = ( EditPermissions => [qw(get_all_subpermissions get_user_subpermissions)] );
  52     $ldap        = C4::Context->config('useldapserver') || 0;
  53     $cas         = C4::Context->preference('casAuthentication');
  54     $caslogout   = C4::Context->preference('casLogout');
  55     require C4::Auth_with_cas;             # no import
  56     if ($ldap) {
  57     require C4::Auth_with_ldap;
  58     import C4::Auth_with_ldap qw(checkpw_ldap);
  59     }
  60     if ($cas) {
  61         import  C4::Auth_with_cas qw(check_api_auth_cas checkpw_cas login_cas logout_cas login_cas_url);
  62     }
  63
  64 }
  65
  66 =head1 NAME
  67
  68 C4::Auth - Authenticates Koha users
  69
  70 =head1 SYNOPSIS
  71
  72   use CGI;
  73   use C4::Auth;
  74   use C4::Output;
  75
  76   my $query = new CGI;
  77
  78   my ($template, $borrowernumber, $cookie)
  79     = get_template_and_user(
  80         {
  81             template_name   => "opac-main.tmpl",
  82             query           => $query,
  83       type            => "opac",
  84       authnotrequired => 1,
  85       flagsrequired   => {borrow => 1, catalogue => '*', tools => 'import_patrons' },
  86   }
  87     );
  88
  89   output_html_with_http_headers $query, $cookie, $template->output;
  90
  91 =head1 DESCRIPTION
  92
  93 The main function of this module is to provide
  94 authentification. However the get_template_and_user function has
  95 been provided so that a users login information is passed along
  96 automatically. This gets loaded into the template.
  97
  98 =head1 FUNCTIONS
  99
 100 =head2 get_template_and_user
 101
 102  my ($template, $borrowernumber, $cookie)
 103      = get_template_and_user(
 104        {
 105          template_name   => "opac-main.tmpl",
 106          query           => $query,
 107          type            => "opac",
 108          authnotrequired => 1,
 109          flagsrequired   => {borrow => 1, catalogue => '*', tools => 'import_patrons' },
 110        }
 111      );
 112
 113 This call passes the C<query>, C<flagsrequired> and C<authnotrequired>
 114 to C<&checkauth> (in this module) to perform authentification.
 115 See C<&checkauth> for an explanation of these parameters.
 116
 117 The C<template_name> is then used to find the correct template for
 118 the page. The authenticated users details are loaded onto the
 119 template in the HTML::Template LOOP variable C<USER_INFO>. Also the
 120 C<sessionID> is passed to the template. This can be used in templates
 121 if cookies are disabled. It needs to be put as and input to every
 122 authenticated page.
 123
 124 More information on the C<gettemplate> sub can be found in the
 125 Output.pm module.
 126
 127 =cut
 128
 129 my $SEARCH_HISTORY_INSERT_SQL =<<EOQ;
 130 INSERT INTO search_history(userid, sessionid, query_desc, query_cgi, total, time            )
 131 VALUES                    (     ?,         ?,          ?,         ?,          ?, FROM_UNIXTIME(?))
 132 EOQ
 133
 134 sub get_template_and_user {
 135     my $in       = shift;
 136     my $template =
 137       C4::Templates::gettemplate( $in->{'template_name'}, $in->{'type'}, $in->{'query'}, $in->{'is_plugin'} );
 138     my ( $user, $cookie, $sessionID, $flags );
 139     if ( $in->{'template_name'} !~m/maintenance/ ) {
 140         ( $user, $cookie, $sessionID, $flags ) = checkauth(
 141             $in->{'query'},
 142             $in->{'authnotrequired'},
 143             $in->{'flagsrequired'},
 144             $in->{'type'}
 145         );
 146     }
 147
 148     my $borrowernumber;
 149     if ($user) {
 150         require C4::Members;
 151         # It's possible for $user to be the borrowernumber if they don't have a
 152         # userid defined (and are logging in through some other method, such
 153         # as SSL certs against an email address)
 154         $borrowernumber = getborrowernumber($user) if defined($user);
 155         if (!defined($borrowernumber) && defined($user)) {
 156             my $borrower = C4::Members::GetMember(borrowernumber => $user);
 157             if ($borrower) {
 158                 $borrowernumber = $user;
 159                 # A bit of a hack, but I don't know there's a nicer way
 160                 # to do it.
 161                 $user = $borrower->{firstname} . ' ' . $borrower->{surname};
 162             }
 163         }
 164
 165         # user info
 166         $template->param( loggedinusername => $user );
 167         $template->param( sessionID        => $sessionID );
 168
 169         my ($total, $pubshelves, $barshelves) = C4::VirtualShelves::GetSomeShelfNames($borrowernumber, 'MASTHEAD');
 170         $template->param(
 171             pubshelves     => $total->{pubtotal},
 172             pubshelvesloop => $pubshelves,
 173             barshelves      => $total->{bartotal},
 174             barshelvesloop  => $barshelves,
 175         );
 176
 177         my ( $borr ) = C4::Members::GetMemberDetails( $borrowernumber );
 178         my @bordat;
 179         $bordat[0] = $borr;
 180         $template->param( "USER_INFO" => \@bordat );
 181
 182         my $all_perms = get_all_subpermissions();
 183
 184         my @flagroots = qw(circulate catalogue parameters borrowers permissions reserveforothers borrow
 185                             editcatalogue updatecharges management tools editauthorities serials reports acquisition);
 186         # We are going to use the $flags returned by checkauth
 187         # to create the template's parameters that will indicate
 188         # which menus the user can access.
 189         if ( $flags && $flags->{superlibrarian}==1 ) {
 190             $template->param( CAN_user_circulate        => 1 );
 191             $template->param( CAN_user_catalogue        => 1 );
 192             $template->param( CAN_user_parameters       => 1 );
 193             $template->param( CAN_user_borrowers        => 1 );
 194             $template->param( CAN_user_permissions      => 1 );
 195             $template->param( CAN_user_reserveforothers => 1 );
 196             $template->param( CAN_user_borrow           => 1 );
 197             $template->param( CAN_user_editcatalogue    => 1 );
 198             $template->param( CAN_user_updatecharges    => 1 );
 199             $template->param( CAN_user_acquisition      => 1 );
 200             $template->param( CAN_user_management       => 1 );
 201             $template->param( CAN_user_tools            => 1 );
 202             $template->param( CAN_user_editauthorities  => 1 );
 203             $template->param( CAN_user_serials          => 1 );
 204             $template->param( CAN_user_reports          => 1 );
 205             $template->param( CAN_user_staffaccess      => 1 );
 206             $template->param( CAN_user_plugins          => 1 );
 207             foreach my $module (keys %$all_perms) {
 208                 foreach my $subperm (keys %{ $all_perms->{$module} }) {
 209                     $template->param( "CAN_user_${module}_${subperm}" => 1 );
 210                 }
 211             }
 212         }
 213
 214         if ( $flags ) {
 215             foreach my $module (keys %$all_perms) {
 216                 if ( $flags->{$module} == 1) {
 217                     foreach my $subperm (keys %{ $all_perms->{$module} }) {
 218                         $template->param( "CAN_user_${module}_${subperm}" => 1 );
 219                     }
 220                 } elsif ( ref($flags->{$module}) ) {
 221                     foreach my $subperm (keys %{ $flags->{$module} } ) {
 222                         $template->param( "CAN_user_${module}_${subperm}" => 1 );
 223                     }
 224                 }
 225             }
 226         }
 227
 228         if ($flags) {
 229             foreach my $module (keys %$flags) {
 230                 if ( $flags->{$module} == 1 or ref($flags->{$module}) ) {
 231                     $template->param( "CAN_user_$module" => 1 );
 232                     if ($module eq "parameters") {
 233                         $template->param( CAN_user_management => 1 );
 234                     }
 235                 }
 236             }
 237         }
 238         # Logged-in opac search history
 239         # If the requested template is an opac one and opac search history is enabled
 240         if ($in->{type} eq 'opac' && C4::Context->preference('EnableOpacSearchHistory')) {
 241             my $dbh = C4::Context->dbh;
 242             my $query = "SELECT COUNT(*) FROM search_history WHERE userid=?";
 243             my $sth = $dbh->prepare($query);
 244             $sth->execute($borrowernumber);
 245
 246             # If at least one search has already been performed
 247             if ($sth->fetchrow_array > 0) {
 248             # We show the link in opac
 249             $template->param(ShowOpacRecentSearchLink => 1);
 250             }
 251
 252             # And if there's a cookie with searches performed when the user was not logged in,
 253             # we add them to the logged-in search history
 254             my $searchcookie = $in->{'query'}->cookie('KohaOpacRecentSearches');
 255             if ($searchcookie){
 256                 $searchcookie = uri_unescape($searchcookie);
 257                     my @recentSearches = @{thaw($searchcookie) || []};
 258                 if (@recentSearches) {
 259                     my $sth = $dbh->prepare($SEARCH_HISTORY_INSERT_SQL);
 260                     $sth->execute( $borrowernumber,
 261                                $in->{'query'}->cookie("CGISESSID"),
 262                                $_->{'query_desc'},
 263                                $_->{'query_cgi'},
 264                                $_->{'total'},
 265                                $_->{'time'},
 266                             ) foreach @recentSearches;
 267
 268                     # And then, delete the cookie's content
 269                     my $newsearchcookie = $in->{'query'}->cookie(
 270                                                 -name => 'KohaOpacRecentSearches',
 271                                                 -value => freeze([]),
 272                                                 -HttpOnly => 1,
 273                                                 -expires => ''
 274                                              );
 275                     $cookie = [$cookie, $newsearchcookie];
 276                 }
 277             }
 278         }
 279     }
 280     else {    # if this is an anonymous session, setup to display public lists...
 281
 282         $template->param( sessionID        => $sessionID );
 283
 284         my ($total, $pubshelves) = C4::VirtualShelves::GetSomeShelfNames(undef, 'MASTHEAD');
 285     $template->param(
 286         pubshelves     => $total->{pubtotal},
 287         pubshelvesloop => $pubshelves,
 288     );
 289     }
 290      # Anonymous opac search history
 291      # If opac search history is enabled and at least one search has already been performed
 292      if (C4::Context->preference('EnableOpacSearchHistory')) {
 293         my $searchcookie = $in->{'query'}->cookie('KohaOpacRecentSearches');
 294         if ($searchcookie){
 295             $searchcookie = uri_unescape($searchcookie);
 296                 my @recentSearches = @{thaw($searchcookie) || []};
 297          # We show the link in opac
 298             if (@recentSearches) {
 299                 $template->param(ShowOpacRecentSearchLink => 1);
 300             }
 301         }
 302      }
 303
 304     if(C4::Context->preference('dateformat')){
 305         $template->param( dateformat => C4::Context->preference('dateformat') );
 306         if(C4::Context->preference('dateformat') eq "metric"){
 307             $template->param(dateformat_metric => 1);
 308         } elsif(C4::Context->preference('dateformat') eq "us"){
 309             $template->param(dateformat_us => 1);
 310         } else {
 311             $template->param(dateformat_iso => 1);
 312         }
 313     } else {
 314         $template->param(dateformat_iso => 1);
 315     }
 316
 317     # these template parameters are set the same regardless of $in->{'type'}
 318     $template->param(
 319             "BiblioDefaultView".C4::Context->preference("BiblioDefaultView")         => 1,
 320             EnhancedMessagingPreferences => C4::Context->preference('EnhancedMessagingPreferences'),
 321             GoogleJackets                => C4::Context->preference("GoogleJackets"),
 322             OpenLibraryCovers            => C4::Context->preference("OpenLibraryCovers"),
 323             KohaAdminEmailAddress        => "" . C4::Context->preference("KohaAdminEmailAddress"),
 324             LoginBranchcode              => (C4::Context->userenv?C4::Context->userenv->{"branch"}:undef),
 325             LoginFirstname               => (C4::Context->userenv?C4::Context->userenv->{"firstname"}:"Bel"),
 326             LoginSurname                 => C4::Context->userenv?C4::Context->userenv->{"surname"}:"Inconnu",
 327             emailaddress                 => C4::Context->userenv?C4::Context->userenv->{"emailaddress"}:undef,
 328             loggedinpersona              => C4::Context->userenv?C4::Context->userenv->{"persona"}:undef,
 329             TagsEnabled                  => C4::Context->preference("TagsEnabled"),
 330             hide_marc                    => C4::Context->preference("hide_marc"),
 331             item_level_itypes            => C4::Context->preference('item-level_itypes'),
 332             patronimages                 => C4::Context->preference("patronimages"),
 333             singleBranchMode             => C4::Context->preference("singleBranchMode"),
 334             XSLTDetailsDisplay           => C4::Context->preference("XSLTDetailsDisplay"),
 335             XSLTResultsDisplay           => C4::Context->preference("XSLTResultsDisplay"),
 336             using_https                  => $in->{'query'}->https() ? 1 : 0,
 337             noItemTypeImages             => C4::Context->preference("noItemTypeImages"),
 338             marcflavour                  => C4::Context->preference("marcflavour"),
 339             persona                      => C4::Context->preference("persona"),
 340     );
 341     if ( $in->{'type'} eq "intranet" ) {
 342         $template->param(
 343             AmazonCoverImages           => C4::Context->preference("AmazonCoverImages"),
 344             AutoLocation                => C4::Context->preference("AutoLocation"),
 345             "BiblioDefaultView".C4::Context->preference("IntranetBiblioDefaultView") => 1,
 346             CalendarFirstDayOfWeek      => (C4::Context->preference("CalendarFirstDayOfWeek") eq "Sunday")?0:1,
 347             CircAutocompl               => C4::Context->preference("CircAutocompl"),
 348             FRBRizeEditions             => C4::Context->preference("FRBRizeEditions"),
 349             IndependantBranches         => C4::Context->preference("IndependantBranches"),
 350             IntranetNav                 => C4::Context->preference("IntranetNav"),
 351             IntranetmainUserblock       => C4::Context->preference("IntranetmainUserblock"),
 352             LibraryName                 => C4::Context->preference("LibraryName"),
 353             LoginBranchname             => (C4::Context->userenv?C4::Context->userenv->{"branchname"}:undef),
 354             advancedMARCEditor          => C4::Context->preference("advancedMARCEditor"),
 355             canreservefromotherbranches => C4::Context->preference('canreservefromotherbranches'),
 356             intranetcolorstylesheet     => C4::Context->preference("intranetcolorstylesheet"),
 357             IntranetFavicon             => C4::Context->preference("IntranetFavicon"),
 358             intranetreadinghistory      => C4::Context->preference("intranetreadinghistory"),
 359             intranetstylesheet          => C4::Context->preference("intranetstylesheet"),
 360             IntranetUserCSS             => C4::Context->preference("IntranetUserCSS"),
 361             intranetuserjs              => C4::Context->preference("intranetuserjs"),
 362             intranetbookbag             => C4::Context->preference("intranetbookbag"),
 363             suggestion                  => C4::Context->preference("suggestion"),
 364             virtualshelves              => C4::Context->preference("virtualshelves"),
 365             StaffSerialIssueDisplayCount => C4::Context->preference("StaffSerialIssueDisplayCount"),
 366             EasyAnalyticalRecords       => C4::Context->preference('EasyAnalyticalRecords'),
 367             LocalCoverImages            => C4::Context->preference('LocalCoverImages'),
 368             OPACLocalCoverImages        => C4::Context->preference('OPACLocalCoverImages'),
 369             AllowMultipleCovers         => C4::Context->preference('AllowMultipleCovers'),
 370             EnableBorrowerFiles         => C4::Context->preference('EnableBorrowerFiles'),
 371             UseKohaPlugins              => C4::Context->preference('UseKohaPlugins'),
 372         );
 373     }
 374     else {
 375         warn "template type should be OPAC, here it is=[" . $in->{'type'} . "]" unless ( $in->{'type'} eq 'opac' );
 376         #TODO : replace LibraryName syspref with 'system name', and remove this html processing
 377         my $LibraryNameTitle = C4::Context->preference("LibraryName");
 378         $LibraryNameTitle =~ s/<(?:\/?)(?:br|p)\s*(?:\/?)>/ /sgi;
 379         $LibraryNameTitle =~ s/<(?:[^<>'"]|'(?:[^']*)'|"(?:[^"]*)")*>//sg;
 380         # clean up the busc param in the session if the page is not opac-detail
 381         if (C4::Context->preference("OpacBrowseResults") && $in->{'template_name'} =~ /opac-(.+)\.(?:tt|tmpl)$/ && $1 !~ /^(?:MARC|ISBD)?detail$/) {
 382             my $sessionSearch = get_session($sessionID || $in->{'query'}->cookie("CGISESSID"));
 383             $sessionSearch->clear(["busc"]) if ($sessionSearch->param("busc"));
 384         }
 385         # variables passed from CGI: opac_css_override and opac_search_limits.
 386         my $opac_search_limit = $ENV{'OPAC_SEARCH_LIMIT'};
 387         my $opac_limit_override = $ENV{'OPAC_LIMIT_OVERRIDE'};
 388         my $opac_name = '';
 389         if (($opac_search_limit && $opac_search_limit =~ /branch:(\w+)/ && $opac_limit_override) || ($in->{'query'}->param('limit') && $in->{'query'}->param('limit') =~ /branch:(\w+)/)){
 390             $opac_name = $1;   # opac_search_limit is a branch, so we use it.
 391         } elsif ( $in->{'query'}->param('multibranchlimit') ) {
 392             $opac_name = $in->{'query'}->param('multibranchlimit');
 393         } elsif (C4::Context->preference("SearchMyLibraryFirst") && C4::Context->userenv && C4::Context->userenv->{'branch'}) {
 394             $opac_name = C4::Context->userenv->{'branch'};
 395         }
 396         $template->param(
 397             opaccolorstylesheet       => C4::Context->preference("opaccolorstylesheet"),
 398             AnonSuggestions           => "" . C4::Context->preference("AnonSuggestions"),
 399             AuthorisedValueImages     => C4::Context->preference("AuthorisedValueImages"),
 400             BranchesLoop              => GetBranchesLoop($opac_name),
 401             BranchCategoriesLoop      => GetBranchCategories( undef, undef, 1, $opac_name ),
 402             CalendarFirstDayOfWeek    => (C4::Context->preference("CalendarFirstDayOfWeek") eq "Sunday")?0:1,
 403             LibraryName               => "" . C4::Context->preference("LibraryName"),
 404             LibraryNameTitle          => "" . $LibraryNameTitle,
 405             LoginBranchname           => C4::Context->userenv?C4::Context->userenv->{"branchname"}:"",
 406             OPACAmazonCoverImages     => C4::Context->preference("OPACAmazonCoverImages"),
 407             OPACFRBRizeEditions       => C4::Context->preference("OPACFRBRizeEditions"),
 408             OpacHighlightedWords      => C4::Context->preference("OpacHighlightedWords"),
 409             OPACItemHolds             => C4::Context->preference("OPACItemHolds"),
 410             OPACShelfBrowser          => "". C4::Context->preference("OPACShelfBrowser"),
 411             OpacShowRecentComments    => C4::Context->preference("OpacShowRecentComments"),
 412             OPACURLOpenInNewWindow    => "" . C4::Context->preference("OPACURLOpenInNewWindow"),
 413             OPACUserCSS               => "". C4::Context->preference("OPACUserCSS"),
 414             OPACMobileUserCSS         => "". C4::Context->preference("OPACMobileUserCSS"),
 415             OPACViewOthersSuggestions => "" . C4::Context->preference("OPACViewOthersSuggestions"),
 416             OpacAuthorities           => C4::Context->preference("OpacAuthorities"),
 417             OPACBaseURL               => ($in->{'query'}->https() ? "https://" : "http://") . $ENV{'SERVER_NAME'} .
 418                    ($ENV{'SERVER_PORT'} eq ($in->{'query'}->https() ? "443" : "80") ? '' : ":$ENV{'SERVER_PORT'}"),
 419             opac_css_override         => $ENV{'OPAC_CSS_OVERRIDE'},
 420             opac_search_limit         => $opac_search_limit,
 421             opac_limit_override       => $opac_limit_override,
 422             OpacBrowser               => C4::Context->preference("OpacBrowser"),
 423             OpacCloud                 => C4::Context->preference("OpacCloud"),
 424             OpacKohaUrl               => C4::Context->preference("OpacKohaUrl"),
 425             OpacMainUserBlock         => "" . C4::Context->preference("OpacMainUserBlock"),
 426             OpacMainUserBlockMobile   => "" . C4::Context->preference("OpacMainUserBlockMobile"),
 427             OpacShowFiltersPulldownMobile => C4::Context->preference("OpacShowFiltersPulldownMobile"),
 428             OpacShowLibrariesPulldownMobile => C4::Context->preference("OpacShowLibrariesPulldownMobile"),
 429             OpacNav                   => "" . C4::Context->preference("OpacNav"),
 430             OpacNavRight              => "" . C4::Context->preference("OpacNavRight"),
 431             OpacNavBottom             => "" . C4::Context->preference("OpacNavBottom"),
 432             OpacPasswordChange        => C4::Context->preference("OpacPasswordChange"),
 433             OPACPatronDetails         => C4::Context->preference("OPACPatronDetails"),
 434             OPACPrivacy               => C4::Context->preference("OPACPrivacy"),
 435             OPACFinesTab              => C4::Context->preference("OPACFinesTab"),
 436             OpacTopissue              => C4::Context->preference("OpacTopissue"),
 437             RequestOnOpac             => C4::Context->preference("RequestOnOpac"),
 438             'Version'                 => C4::Context->preference('Version'),
 439             hidelostitems             => C4::Context->preference("hidelostitems"),
 440             mylibraryfirst            => (C4::Context->preference("SearchMyLibraryFirst") && C4::Context->userenv) ? C4::Context->userenv->{'branch'} : '',
 441             opaclayoutstylesheet      => "" . C4::Context->preference("opaclayoutstylesheet"),
 442             opacbookbag               => "" . C4::Context->preference("opacbookbag"),
 443             opaccredits               => "" . C4::Context->preference("opaccredits"),
 444             OpacFavicon               => C4::Context->preference("OpacFavicon"),
 445             opacheader                => "" . C4::Context->preference("opacheader"),
 446             opaclanguagesdisplay      => "" . C4::Context->preference("opaclanguagesdisplay"),
 447             opacreadinghistory        => C4::Context->preference("opacreadinghistory"),
 448             opacsmallimage            => "" . C4::Context->preference("opacsmallimage"),
 449             opacuserjs                => C4::Context->preference("opacuserjs"),
 450             opacuserlogin             => "" . C4::Context->preference("opacuserlogin"),
 451             reviewson                 => C4::Context->preference("reviewson"),
 452             ShowReviewer              => C4::Context->preference("ShowReviewer"),
 453             ShowReviewerPhoto         => C4::Context->preference("ShowReviewerPhoto"),
 454             suggestion                => "" . C4::Context->preference("suggestion"),
 455             virtualshelves            => "" . C4::Context->preference("virtualshelves"),
 456             OPACSerialIssueDisplayCount => C4::Context->preference("OPACSerialIssueDisplayCount"),
 457             OpacAddMastheadLibraryPulldown => C4::Context->preference("OpacAddMastheadLibraryPulldown"),
 458             OPACXSLTDetailsDisplay           => C4::Context->preference("OPACXSLTDetailsDisplay"),
 459             OPACXSLTResultsDisplay           => C4::Context->preference("OPACXSLTResultsDisplay"),
 460             SyndeticsClientCode          => C4::Context->preference("SyndeticsClientCode"),
 461             SyndeticsEnabled             => C4::Context->preference("SyndeticsEnabled"),
 462             SyndeticsCoverImages         => C4::Context->preference("SyndeticsCoverImages"),
 463             SyndeticsTOC                 => C4::Context->preference("SyndeticsTOC"),
 464             SyndeticsSummary             => C4::Context->preference("SyndeticsSummary"),
 465             SyndeticsEditions            => C4::Context->preference("SyndeticsEditions"),
 466             SyndeticsExcerpt             => C4::Context->preference("SyndeticsExcerpt"),
 467             SyndeticsReviews             => C4::Context->preference("SyndeticsReviews"),
 468             SyndeticsAuthorNotes         => C4::Context->preference("SyndeticsAuthorNotes"),
 469             SyndeticsAwards              => C4::Context->preference("SyndeticsAwards"),
 470             SyndeticsSeries              => C4::Context->preference("SyndeticsSeries"),
 471             SyndeticsCoverImageSize      => C4::Context->preference("SyndeticsCoverImageSize"),
 472             OPACLocalCoverImages         => C4::Context->preference("OPACLocalCoverImages"),
 473             PatronSelfRegistration       => C4::Context->preference("PatronSelfRegistration"),
 474             PatronSelfRegistrationDefaultCategory => C4::Context->preference("PatronSelfRegistrationDefaultCategory"),
 475         );
 476
 477         $template->param(OpacPublic => '1') if ($user || C4::Context->preference("OpacPublic"));
 478     }
 479     return ( $template, $borrowernumber, $cookie, $flags);
 480 }
 481
 482 =head2 checkauth
 483
 484   ($userid, $cookie, $sessionID) = &checkauth($query, $noauth, $flagsrequired, $type);
 485
 486 Verifies that the user is authorized to run this script.  If
 487 the user is authorized, a (userid, cookie, session-id, flags)
 488 quadruple is returned.  If the user is not authorized but does
 489 not have the required privilege (see $flagsrequired below), it
 490 displays an error page and exits.  Otherwise, it displays the
 491 login page and exits.
 492
 493 Note that C<&checkauth> will return if and only if the user
 494 is authorized, so it should be called early on, before any
 495 unfinished operations (e.g., if you've opened a file, then
 496 C<&checkauth> won't close it for you).
 497
 498 C<$query> is the CGI object for the script calling C<&checkauth>.
 499
 500 The C<$noauth> argument is optional. If it is set, then no
 501 authorization is required for the script.
 502
 503 C<&checkauth> fetches user and session information from C<$query> and
 504 ensures that the user is authorized to run scripts that require
 505 authorization.
 506
 507 The C<$flagsrequired> argument specifies the required privileges
 508 the user must have if the username and password are correct.
 509 It should be specified as a reference-to-hash; keys in the hash
 510 should be the "flags" for the user, as specified in the Members
 511 intranet module. Any key specified must correspond to a "flag"
 512 in the userflags table. E.g., { circulate => 1 } would specify
 513 that the user must have the "circulate" privilege in order to
 514 proceed. To make sure that access control is correct, the
 515 C<$flagsrequired> parameter must be specified correctly.
 516
 517 Koha also has a concept of sub-permissions, also known as
 518 granular permissions.  This makes the value of each key
 519 in the C<flagsrequired> hash take on an additional
 520 meaning, i.e.,
 521
 522  1
 523
 524 The user must have access to all subfunctions of the module
 525 specified by the hash key.
 526
 527  *
 528
 529 The user must have access to at least one subfunction of the module
 530 specified by the hash key.
 531
 532  specific permission, e.g., 'export_catalog'
 533
 534 The user must have access to the specific subfunction list, which
 535 must correspond to a row in the permissions table.
 536
 537 The C<$type> argument specifies whether the template should be
 538 retrieved from the opac or intranet directory tree.  "opac" is
 539 assumed if it is not specified; however, if C<$type> is specified,
 540 "intranet" is assumed if it is not "opac".
 541
 542 If C<$query> does not have a valid session ID associated with it
 543 (i.e., the user has not logged in) or if the session has expired,
 544 C<&checkauth> presents the user with a login page (from the point of
 545 view of the original script, C<&checkauth> does not return). Once the
 546 user has authenticated, C<&checkauth> restarts the original script
 547 (this time, C<&checkauth> returns).
 548
 549 The login page is provided using a HTML::Template, which is set in the
 550 systempreferences table or at the top of this file. The variable C<$type>
 551 selects which template to use, either the opac or the intranet
 552 authentification template.
 553
 554 C<&checkauth> returns a user ID, a cookie, and a session ID. The
 555 cookie should be sent back to the browser; it verifies that the user
 556 has authenticated.
 557
 558 =cut
 559
 560 sub _version_check {
 561     my $type = shift;
 562     my $query = shift;
 563     my $version;
 564     # If Version syspref is unavailable, it means Koha is beeing installed,
 565     # and so we must redirect to OPAC maintenance page or to the WebInstaller
 566     # also, if OpacMaintenance is ON, OPAC should redirect to maintenance
 567     if (C4::Context->preference('OpacMaintenance') && $type eq 'opac') {
 568         warn "OPAC Install required, redirecting to maintenance";
 569         print $query->redirect("/cgi-bin/koha/maintenance.pl");
 570         safe_exit;
 571     }
 572     unless ( $version = C4::Context->preference('Version') ) {    # assignment, not comparison
 573         if ( $type ne 'opac' ) {
 574             warn "Install required, redirecting to Installer";
 575             print $query->redirect("/cgi-bin/koha/installer/install.pl");
 576         } else {
 577             warn "OPAC Install required, redirecting to maintenance";
 578             print $query->redirect("/cgi-bin/koha/maintenance.pl");
 579         }
 580         safe_exit;
 581     }
 582
 583     # check that database and koha version are the same
 584     # there is no DB version, it's a fresh install,
 585     # go to web installer
 586     # there is a DB version, compare it to the code version
 587     my $kohaversion=C4::Context::KOHAVERSION;
 588     # remove the 3 last . to have a Perl number
 589     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
 590     $debug and print STDERR "kohaversion : $kohaversion\n";
 591     if ($version < $kohaversion){
 592         my $warning = "Database update needed, redirecting to %s. Database is $version and Koha is $kohaversion";
 593         if ($type ne 'opac'){
 594             warn sprintf($warning, 'Installer');
 595             print $query->redirect("/cgi-bin/koha/installer/install.pl?step=3");
 596         } else {
 597             warn sprintf("OPAC: " . $warning, 'maintenance');
 598             print $query->redirect("/cgi-bin/koha/maintenance.pl");
 599         }
 600         safe_exit;
 601     }
 602 }
 603
 604 sub _session_log {
 605     (@_) or return 0;
 606     open my $fh, '>>', "/tmp/sessionlog" or warn "ERROR: Cannot append to /tmp/sessionlog";
 607     printf $fh join("\n",@_);
 608     close $fh;
 609 }
 610
 611 sub _timeout_syspref {
 612     my $timeout = C4::Context->preference('timeout') || 600;
 613     # value in days, convert in seconds
 614     if ($timeout =~ /(\d+)[dD]/) {
 615         $timeout = $1 * 86400;
 616     };
 617     return $timeout;
 618 }
 619
 620 sub checkauth {
 621     my $query = shift;
 622     $debug and warn "Checking Auth";
 623     # $authnotrequired will be set for scripts which will run without authentication
 624     my $authnotrequired = shift;
 625     my $flagsrequired   = shift;
 626     my $type            = shift;
 627     my $persona         = shift;
 628     $type = 'opac' unless $type;
 629
 630     my $dbh     = C4::Context->dbh;
 631     my $timeout = _timeout_syspref();
 632
 633     _version_check($type,$query);
 634     # state variables
 635     my $loggedin = 0;
 636     my %info;
 637     my ( $userid, $cookie, $sessionID, $flags, $barshelves, $pubshelves );
 638     my $logout = $query->param('logout.x');
 639
 640     # This parameter is the name of the CAS server we want to authenticate against,
 641     # when using authentication against multiple CAS servers, as configured in Auth_cas_servers.yaml
 642     my $casparam = $query->param('cas');
 643
 644     if ( $userid = $ENV{'REMOTE_USER'} ) {
 645             # Using Basic Authentication, no cookies required
 646         $cookie = $query->cookie(
 647             -name     => 'CGISESSID',
 648             -value    => '',
 649             -expires  => '',
 650             -HttpOnly => 1,
 651         );
 652         $loggedin = 1;
 653     }
 654     elsif ( $persona ){
 655       # we dont want to set a session because we are being called by a persona callback
 656     }
 657     elsif ( $sessionID = $query->cookie("CGISESSID") )
 658     {    # assignment, not comparison
 659         my $session = get_session($sessionID);
 660         C4::Context->_new_userenv($sessionID);
 661         my ($ip, $lasttime, $sessiontype);
 662         if ($session){
 663             C4::Context::set_userenv(
 664                 $session->param('number'),       $session->param('id'),
 665                 $session->param('cardnumber'),   $session->param('firstname'),
 666                 $session->param('surname'),      $session->param('branch'),
 667                 $session->param('branchname'),   $session->param('flags'),
 668                 $session->param('emailaddress'), $session->param('branchprinter'),
 669                 $session->param('persona')
 670             );
 671             C4::Context::set_shelves_userenv('bar',$session->param('barshelves'));
 672             C4::Context::set_shelves_userenv('pub',$session->param('pubshelves'));
 673             C4::Context::set_shelves_userenv('tot',$session->param('totshelves'));
 674             $debug and printf STDERR "AUTH_SESSION: (%s)\t%s %s - %s\n", map {$session->param($_)} qw(cardnumber firstname surname branch) ;
 675             $ip       = $session->param('ip');
 676             $lasttime = $session->param('lasttime');
 677             $userid   = $session->param('id');
 678             utf8::decode($userid);
 679             $sessiontype = $session->param('sessiontype') || '';
 680         }
 681         if ( ( ($query->param('koha_login_context')) && ($query->param('userid') ne $session->param('id')) )
 682           || ( $cas && $query->param('ticket') ) ) {
 683             #if a user enters an id ne to the id in the current session, we need to log them in...
 684             #first we need to clear the anonymous session...
 685             $debug and warn "query id = " . $query->param('userid') . " but session id = " . $session->param('id');
 686             $session->flush;
 687             $session->delete();
 688             C4::Context->_unset_userenv($sessionID);
 689             $sessionID = undef;
 690             $userid = undef;
 691         }
 692         elsif ($logout) {
 693             # voluntary logout the user
 694             $session->flush;
 695             $session->delete();
 696             C4::Context->_unset_userenv($sessionID);
 697             #_session_log(sprintf "%20s from %16s logged out at %30s (manually).\n", $userid,$ip,(strftime "%c",localtime));
 698             $sessionID = undef;
 699             $userid    = undef;
 700
 701         if ($cas and $caslogout) {
 702         logout_cas($query);
 703         }
 704         }
 705         elsif ( $lasttime < time() - $timeout ) {
 706             # timed logout
 707             $info{'timed_out'} = 1;
 708             $session->delete() if $session;
 709             C4::Context->_unset_userenv($sessionID);
 710             #_session_log(sprintf "%20s from %16s logged out at %30s (inactivity).\n", $userid,$ip,(strftime "%c",localtime));
 711             $userid    = undef;
 712             $sessionID = undef;
 713         }
 714         elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) {
 715             # Different ip than originally logged in from
 716             $info{'oldip'}        = $ip;
 717             $info{'newip'}        = $ENV{'REMOTE_ADDR'};
 718             $info{'different_ip'} = 1;
 719             $session->delete();
 720             C4::Context->_unset_userenv($sessionID);
 721             #_session_log(sprintf "%20s from %16s logged out at %30s (ip changed to %16s).\n", $userid,$ip,(strftime "%c",localtime), $info{'newip'});
 722             $sessionID = undef;
 723             $userid    = undef;
 724         }
 725         else {
 726             $cookie = $query->cookie(
 727                 -name     => 'CGISESSID',
 728                 -value    => $session->id,
 729                 -HttpOnly => 1
 730             );
 731             $session->param( 'lasttime', time() );
 732             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...
 733                 $flags = haspermission($userid, $flagsrequired);
 734                 if ($flags) {
 735                     $loggedin = 1;
 736                 } else {
 737                     $info{'nopermission'} = 1;
 738                 }
 739             }
 740         }
 741     }
 742     unless ($userid || $sessionID) {
 743
 744         #we initiate a session prior to checking for a username to allow for anonymous sessions...
 745         my $session = get_session("") or die "Auth ERROR: Cannot get_session()";
 746         my $sessionID = $session->id;
 747         C4::Context->_new_userenv($sessionID);
 748         $cookie = $query->cookie(
 749             -name     => 'CGISESSID',
 750             -value    => $session->id,
 751             -HttpOnly => 1
 752         );
 753     $userid = $query->param('userid');
 754     utf8::decode($userid);
 755         if (   ( $cas && $query->param('ticket') )
 756             || $userid
 757             || ( my $pki_field = C4::Context->preference('AllowPKIAuth') ) ne
 758             'None' || $persona )
 759         {
 760             my $password = $query->param('password');
 761
 762             my ( $return, $cardnumber );
 763             if ( $cas && $query->param('ticket') ) {
 764                 my $retuserid;
 765                 ( $return, $cardnumber, $retuserid ) =
 766                   checkpw( $dbh, $userid, $password, $query );
 767                 $userid = $retuserid;
 768                 $info{'invalidCasLogin'} = 1 unless ($return);
 769             }
 770
 771     elsif ($persona) {
 772         my $value = $persona;
 773
 774         # If we're looking up the email, there's a chance that the person
 775         # doesn't have a userid. So if there is none, we pass along the
 776         # borrower number, and the bits of code that need to know the user
 777         # ID will have to be smart enough to handle that.
 778         require C4::Members;
 779         my @users_info = C4::Members::GetBorrowersWithEmail($value);
 780         if (@users_info) {
 781
 782             # First the userid, then the borrowernum
 783             $value = $users_info[0][1] || $users_info[0][0];
 784         }
 785         else {
 786             undef $value;
 787         }
 788         $return = $value ? 1 : 0;
 789         $userid = $value;
 790     }
 791
 792     elsif (
 793                 ( $pki_field eq 'Common Name' && $ENV{'SSL_CLIENT_S_DN_CN'} )
 794                 || (   $pki_field eq 'emailAddress'
 795                     && $ENV{'SSL_CLIENT_S_DN_Email'} )
 796               )
 797             {
 798                 my $value;
 799                 if ( $pki_field eq 'Common Name' ) {
 800                     $value = $ENV{'SSL_CLIENT_S_DN_CN'};
 801                 }
 802                 elsif ( $pki_field eq 'emailAddress' ) {
 803                     $value = $ENV{'SSL_CLIENT_S_DN_Email'};
 804
 805               # If we're looking up the email, there's a chance that the person
 806               # doesn't have a userid. So if there is none, we pass along the
 807               # borrower number, and the bits of code that need to know the user
 808               # ID will have to be smart enough to handle that.
 809                     require C4::Members;
 810                     my @users_info = C4::Members::GetBorrowersWithEmail($value);
 811                     if (@users_info) {
 812
 813                         # First the userid, then the borrowernum
 814                         $value = $users_info[0][1] || $users_info[0][0];
 815                     } else {
 816                         undef $value;
 817                     }
 818                 }
 819
 820
 821                 $return = $value ? 1 : 0;
 822                 $userid = $value;
 823
 824     }
 825             else {
 826                 my $retuserid;
 827                 ( $return, $cardnumber, $retuserid ) =
 828                   checkpw( $dbh, $userid, $password, $query );
 829                 $userid = $retuserid if ( $retuserid ne '' );
 830         }
 831         if ($return) {
 832                #_session_log(sprintf "%20s from %16s logged in  at %30s.\n", $userid,$ENV{'REMOTE_ADDR'},(strftime '%c', localtime));
 833                 if ( $flags = haspermission(  $userid, $flagsrequired ) ) {
 834                     $loggedin = 1;
 835                 }
 836                    else {
 837                     $info{'nopermission'} = 1;
 838                     C4::Context->_unset_userenv($sessionID);
 839                 }
 840                 my ($borrowernumber, $firstname, $surname, $userflags,
 841                     $branchcode, $branchname, $branchprinter, $emailaddress);
 842
 843                 if ( $return == 1 ) {
 844                     my $select = "
 845                     SELECT borrowernumber, firstname, surname, flags, borrowers.branchcode,
 846                     branches.branchname    as branchname,
 847                     branches.branchprinter as branchprinter,
 848                     email
 849                     FROM borrowers
 850                     LEFT JOIN branches on borrowers.branchcode=branches.branchcode
 851                     ";
 852                     my $sth = $dbh->prepare("$select where userid=?");
 853                     $sth->execute($userid);
 854                     unless ($sth->rows) {
 855                         $debug and print STDERR "AUTH_1: no rows for userid='$userid'\n";
 856                         $sth = $dbh->prepare("$select where cardnumber=?");
 857                         $sth->execute($cardnumber);
 858
 859                         unless ($sth->rows) {
 860                             $debug and print STDERR "AUTH_2a: no rows for cardnumber='$cardnumber'\n";
 861                             $sth->execute($userid);
 862                             unless ($sth->rows) {
 863                                 $debug and print STDERR "AUTH_2b: no rows for userid='$userid' AS cardnumber\n";
 864                             }
 865                         }
 866                     }
 867                     if ($sth->rows) {
 868                         ($borrowernumber, $firstname, $surname, $userflags,
 869                             $branchcode, $branchname, $branchprinter, $emailaddress) = $sth->fetchrow;
 870                         $debug and print STDERR "AUTH_3 results: " .
 871                         "$cardnumber,$borrowernumber,$userid,$firstname,$surname,$userflags,$branchcode,$emailaddress\n";
 872                     } else {
 873                         print STDERR "AUTH_3: no results for userid='$userid', cardnumber='$cardnumber'.\n";
 874                     }
 875
 876 # launch a sequence to check if we have a ip for the branch, i
 877 # if we have one we replace the branchcode of the userenv by the branch bound in the ip.
 878
 879                     my $ip       = $ENV{'REMOTE_ADDR'};
 880                     # if they specify at login, use that
 881                     if ($query->param('branch')) {
 882                         $branchcode  = $query->param('branch');
 883                         $branchname = GetBranchName($branchcode);
 884                     }
 885                     my $branches = GetBranches();
 886                     if (C4::Context->boolean_preference('IndependantBranches') && C4::Context->boolean_preference('Autolocation')){
 887                         # we have to check they are coming from the right ip range
 888                         my $domain = $branches->{$branchcode}->{'branchip'};
 889                         if ($ip !~ /^$domain/){
 890                             $loggedin=0;
 891                             $info{'wrongip'} = 1;
 892                         }
 893                     }
 894
 895                     my @branchesloop;
 896                     foreach my $br ( keys %$branches ) {
 897                         #     now we work with the treatment of ip
 898                         my $domain = $branches->{$br}->{'branchip'};
 899                         if ( $domain && $ip =~ /^$domain/ ) {
 900                             $branchcode = $branches->{$br}->{'branchcode'};
 901
 902                             # new op dev : add the branchprinter and branchname in the cookie
 903                             $branchprinter = $branches->{$br}->{'branchprinter'};
 904                             $branchname    = $branches->{$br}->{'branchname'};
 905                         }
 906                     }
 907                     $session->param('number',$borrowernumber);
 908                     $session->param('id',$userid);
 909                     $session->param('cardnumber',$cardnumber);
 910                     $session->param('firstname',$firstname);
 911                     $session->param('surname',$surname);
 912                     $session->param('branch',$branchcode);
 913                     $session->param('branchname',$branchname);
 914                     $session->param('flags',$userflags);
 915                     $session->param('emailaddress',$emailaddress);
 916                     $session->param('ip',$session->remote_addr());
 917                     $session->param('lasttime',time());
 918                     $debug and printf STDERR "AUTH_4: (%s)\t%s %s - %s\n", map {$session->param($_)} qw(cardnumber firstname surname branch) ;
 919                 }
 920                 elsif ( $return == 2 ) {
 921                     #We suppose the user is the superlibrarian
 922                     $borrowernumber = 0;
 923                     $session->param('number',0);
 924                     $session->param('id',C4::Context->config('user'));
 925                     $session->param('cardnumber',C4::Context->config('user'));
 926                     $session->param('firstname',C4::Context->config('user'));
 927                     $session->param('surname',C4::Context->config('user'));
 928                     $session->param('branch','NO_LIBRARY_SET');
 929                     $session->param('branchname','NO_LIBRARY_SET');
 930                     $session->param('flags',1);
 931                     $session->param('emailaddress', C4::Context->preference('KohaAdminEmailAddress'));
 932                     $session->param('ip',$session->remote_addr());
 933                     $session->param('lasttime',time());
 934                 }
 935                 if ($persona){
 936                     $session->param('persona',1);
 937                 }
 938                 C4::Context::set_userenv(
 939                     $session->param('number'),       $session->param('id'),
 940                     $session->param('cardnumber'),   $session->param('firstname'),
 941                     $session->param('surname'),      $session->param('branch'),
 942                     $session->param('branchname'),   $session->param('flags'),
 943                     $session->param('emailaddress'), $session->param('branchprinter'),
 944                     $session->param('persona')
 945                 );
 946
 947             }
 948             else {
 949                 if ($userid) {
 950                     $info{'invalid_username_or_password'} = 1;
 951                     C4::Context->_unset_userenv($sessionID);
 952                 }
 953             }
 954         }    # END if ( $userid    = $query->param('userid') )
 955         elsif ($type eq "opac") {
 956             # if we are here this is an anonymous session; add public lists to it and a few other items...
 957             # anonymous sessions are created only for the OPAC
 958             $debug and warn "Initiating an anonymous session...";
 959
 960             # setting a couple of other session vars...
 961             $session->param('ip',$session->remote_addr());
 962             $session->param('lasttime',time());
 963             $session->param('sessiontype','anon');
 964         }
 965     }    # END unless ($userid)
 966
 967     # finished authentification, now respond
 968     if ( $loggedin || $authnotrequired )
 969     {
 970         # successful login
 971         unless ($cookie) {
 972             $cookie = $query->cookie(
 973                 -name     => 'CGISESSID',
 974                 -value    => '',
 975                 -HttpOnly => 1
 976             );
 977         }
 978         return ( $userid, $cookie, $sessionID, $flags );
 979     }
 980
 981 #
 982 #
 983 # AUTH rejected, show the login/password template, after checking the DB.
 984 #
 985 #
 986
 987     # get the inputs from the incoming query
 988     my @inputs = ();
 989     foreach my $name ( param $query) {
 990         (next) if ( $name eq 'userid' || $name eq 'password' || $name eq 'ticket' );
 991         my $value = $query->param($name);
 992         push @inputs, { name => $name, value => $value };
 993     }
 994
 995     my $template_name = ( $type eq 'opac' ) ? 'opac-auth.tmpl' : 'auth.tmpl';
 996     my $template = C4::Templates::gettemplate($template_name, $type, $query );
 997     $template->param(
 998         branchloop           => GetBranchesLoop(),
 999         opaccolorstylesheet  => C4::Context->preference("opaccolorstylesheet"),
1000         opaclayoutstylesheet => C4::Context->preference("opaclayoutstylesheet"),
1001         login                => 1,
1002         INPUTS               => \@inputs,
1003         casAuthentication    => C4::Context->preference("casAuthentication"),
1004         suggestion           => C4::Context->preference("suggestion"),
1005         virtualshelves       => C4::Context->preference("virtualshelves"),
1006         LibraryName          => C4::Context->preference("LibraryName"),
1007         opacuserlogin        => C4::Context->preference("opacuserlogin"),
1008         OpacNav              => C4::Context->preference("OpacNav"),
1009         OpacNavRight         => C4::Context->preference("OpacNavRight"),
1010         OpacNavBottom        => C4::Context->preference("OpacNavBottom"),
1011         opaccredits          => C4::Context->preference("opaccredits"),
1012         OpacFavicon          => C4::Context->preference("OpacFavicon"),
1013         opacreadinghistory   => C4::Context->preference("opacreadinghistory"),
1014         opacsmallimage       => C4::Context->preference("opacsmallimage"),
1015         opaclanguagesdisplay => C4::Context->preference("opaclanguagesdisplay"),
1016         opacuserjs           => C4::Context->preference("opacuserjs"),
1017         opacbookbag          => "" . C4::Context->preference("opacbookbag"),
1018         OpacCloud            => C4::Context->preference("OpacCloud"),
1019         OpacTopissue         => C4::Context->preference("OpacTopissue"),
1020         OpacAuthorities      => C4::Context->preference("OpacAuthorities"),
1021         OpacBrowser          => C4::Context->preference("OpacBrowser"),
1022         opacheader           => C4::Context->preference("opacheader"),
1023         TagsEnabled          => C4::Context->preference("TagsEnabled"),
1024         OPACUserCSS           => C4::Context->preference("OPACUserCSS"),
1025         intranetcolorstylesheet => C4::Context->preference("intranetcolorstylesheet"),
1026         intranetstylesheet => C4::Context->preference("intranetstylesheet"),
1027         intranetbookbag    => C4::Context->preference("intranetbookbag"),
1028         IntranetNav        => C4::Context->preference("IntranetNav"),
1029         IntranetFavicon    => C4::Context->preference("IntranetFavicon"),
1030         intranetuserjs     => C4::Context->preference("intranetuserjs"),
1031         IndependantBranches=> C4::Context->preference("IndependantBranches"),
1032         AutoLocation       => C4::Context->preference("AutoLocation"),
1033         wrongip            => $info{'wrongip'},
1034         PatronSelfRegistration => C4::Context->preference("PatronSelfRegistration"),
1035         PatronSelfRegistrationDefaultCategory => C4::Context->preference("PatronSelfRegistrationDefaultCategory"),
1036         persona            => C4::Context->preference("Persona"),
1037     );
1038
1039     $template->param( OpacPublic => C4::Context->preference("OpacPublic"));
1040     $template->param( loginprompt => 1 ) unless $info{'nopermission'};
1041
1042     if ($cas) {
1043
1044     # Is authentication against multiple CAS servers enabled?
1045         if (C4::Auth_with_cas::multipleAuth && !$casparam) {
1046         my $casservers = C4::Auth_with_cas::getMultipleAuth();
1047         my @tmplservers;
1048         foreach my $key (keys %$casservers) {
1049         push @tmplservers, {name => $key, value => login_cas_url($query, $key) . "?cas=$key" };
1050         }
1051         $template->param(
1052         casServersLoop => \@tmplservers
1053         );
1054     } else {
1055         $template->param(
1056             casServerUrl    => login_cas_url($query),
1057         );
1058     }
1059
1060     $template->param(
1061             invalidCasLogin => $info{'invalidCasLogin'}
1062         );
1063     }
1064
1065     my $self_url = $query->url( -absolute => 1 );
1066     $template->param(
1067         url         => $self_url,
1068         LibraryName => C4::Context->preference("LibraryName"),
1069     );
1070     $template->param( %info );
1071
1072     require C4::Output;
1073     C4::Output::output_html_with_http_headers( $query, $cookie,
1074                                                $template->output);
1075     safe_exit;
1076 }
1077
1078 =head2 check_api_auth
1079
1080   ($status, $cookie, $sessionId) = check_api_auth($query, $userflags);
1081
1082 Given a CGI query containing the parameters 'userid' and 'password' and/or a session
1083 cookie, determine if the user has the privileges specified by C<$userflags>.
1084
1085 C<check_api_auth> is is meant for authenticating users of web services, and
1086 consequently will always return and will not attempt to redirect the user
1087 agent.
1088
1089 If a valid session cookie is already present, check_api_auth will return a status
1090 of "ok", the cookie, and the Koha session ID.
1091
1092 If no session cookie is present, check_api_auth will check the 'userid' and 'password
1093 parameters and create a session cookie and Koha session if the supplied credentials
1094 are OK.
1095
1096 Possible return values in C<$status> are:
1097
1098 =over
1099
1100 =item "ok" -- user authenticated; C<$cookie> and C<$sessionid> have valid values.
1101
1102 =item "failed" -- credentials are not correct; C<$cookie> and C<$sessionid> are undef
1103
1104 =item "maintenance" -- DB is in maintenance mode; no login possible at the moment
1105
1106 =item "expired -- session cookie has expired; API user should resubmit userid and password
1107
1108 =back
1109
1110 =cut
1111
1112 sub check_api_auth {
1113     my $query = shift;
1114     my $flagsrequired = shift;
1115
1116     my $dbh     = C4::Context->dbh;
1117     my $timeout = _timeout_syspref();
1118
1119     unless (C4::Context->preference('Version')) {
1120         # database has not been installed yet
1121         return ("maintenance", undef, undef);
1122     }
1123     my $kohaversion=C4::Context::KOHAVERSION;
1124     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
1125     if (C4::Context->preference('Version') < $kohaversion) {
1126         # database in need of version update; assume that
1127         # no API should be called while databsae is in
1128         # this condition.
1129         return ("maintenance", undef, undef);
1130     }
1131
1132     # FIXME -- most of what follows is a copy-and-paste
1133     # of code from checkauth.  There is an obvious need
1134     # for refactoring to separate the various parts of
1135     # the authentication code, but as of 2007-11-19 this
1136     # is deferred so as to not introduce bugs into the
1137     # regular authentication code for Koha 3.0.
1138
1139     # see if we have a valid session cookie already
1140     # however, if a userid parameter is present (i.e., from
1141     # a form submission, assume that any current cookie
1142     # is to be ignored
1143     my $sessionID = undef;
1144     unless ($query->param('userid')) {
1145         $sessionID = $query->cookie("CGISESSID");
1146     }
1147     if ($sessionID && not ($cas && $query->param('PT')) ) {
1148         my $session = get_session($sessionID);
1149         C4::Context->_new_userenv($sessionID);
1150         if ($session) {
1151             C4::Context::set_userenv(
1152                 $session->param('number'),       $session->param('id'),
1153                 $session->param('cardnumber'),   $session->param('firstname'),
1154                 $session->param('surname'),      $session->param('branch'),
1155                 $session->param('branchname'),   $session->param('flags'),
1156                 $session->param('emailaddress'), $session->param('branchprinter')
1157             );
1158
1159             my $ip = $session->param('ip');
1160             my $lasttime = $session->param('lasttime');
1161             my $userid = $session->param('id');
1162             if ( $lasttime < time() - $timeout ) {
1163                 # time out
1164                 $session->delete();
1165                 C4::Context->_unset_userenv($sessionID);
1166                 $userid    = undef;
1167                 $sessionID = undef;
1168                 return ("expired", undef, undef);
1169             } elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) {
1170                 # IP address changed
1171                 $session->delete();
1172                 C4::Context->_unset_userenv($sessionID);
1173                 $userid    = undef;
1174                 $sessionID = undef;
1175                 return ("expired", undef, undef);
1176             } else {
1177                 my $cookie = $query->cookie(
1178                     -name  => 'CGISESSID',
1179                     -value => $session->id,
1180                     -HttpOnly => 1,
1181                 );
1182                 $session->param('lasttime',time());
1183                 my $flags = haspermission($userid, $flagsrequired);
1184                 if ($flags) {
1185                     return ("ok", $cookie, $sessionID);
1186                 } else {
1187                     $session->delete();
1188                     C4::Context->_unset_userenv($sessionID);
1189                     $userid    = undef;
1190                     $sessionID = undef;
1191                     return ("failed", undef, undef);
1192                 }
1193             }
1194         } else {
1195             return ("expired", undef, undef);
1196         }
1197     } else {
1198         # new login
1199         my $userid = $query->param('userid');
1200         my $password = $query->param('password');
1201            my ($return, $cardnumber);
1202
1203     # Proxy CAS auth
1204     if ($cas && $query->param('PT')) {
1205         my $retuserid;
1206         $debug and print STDERR "## check_api_auth - checking CAS\n";
1207         # In case of a CAS authentication, we use the ticket instead of the password
1208         my $PT = $query->param('PT');
1209         ($return,$cardnumber,$userid) = check_api_auth_cas($dbh, $PT, $query);    # EXTERNAL AUTH
1210     } else {
1211         # User / password auth
1212         unless ($userid and $password) {
1213         # caller did something wrong, fail the authenticateion
1214         return ("failed", undef, undef);
1215         }
1216         ( $return, $cardnumber ) = checkpw( $dbh, $userid, $password, $query );
1217     }
1218
1219         if ($return and haspermission(  $userid, $flagsrequired)) {
1220             my $session = get_session("");
1221             return ("failed", undef, undef) unless $session;
1222
1223             my $sessionID = $session->id;
1224             C4::Context->_new_userenv($sessionID);
1225             my $cookie = $query->cookie(
1226                 -name  => 'CGISESSID',
1227                 -value => $sessionID,
1228                 -HttpOnly => 1,
1229             );
1230             if ( $return == 1 ) {
1231                 my (
1232                     $borrowernumber, $firstname,  $surname,
1233                     $userflags,      $branchcode, $branchname,
1234                     $branchprinter,  $emailaddress
1235                 );
1236                 my $sth =
1237                   $dbh->prepare(
1238 "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=?"
1239                   );
1240                 $sth->execute($userid);
1241                 (
1242                     $borrowernumber, $firstname,  $surname,
1243                     $userflags,      $branchcode, $branchname,
1244                     $branchprinter,  $emailaddress
1245                 ) = $sth->fetchrow if ( $sth->rows );
1246
1247                 unless ($sth->rows ) {
1248                     my $sth = $dbh->prepare(
1249 "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=?"
1250                       );
1251                     $sth->execute($cardnumber);
1252                     (
1253                         $borrowernumber, $firstname,  $surname,
1254                         $userflags,      $branchcode, $branchname,
1255                         $branchprinter,  $emailaddress
1256                     ) = $sth->fetchrow if ( $sth->rows );
1257
1258                     unless ( $sth->rows ) {
1259                         $sth->execute($userid);
1260                         (
1261                             $borrowernumber, $firstname, $surname, $userflags,
1262                             $branchcode, $branchname, $branchprinter, $emailaddress
1263                         ) = $sth->fetchrow if ( $sth->rows );
1264                     }
1265                 }
1266
1267                 my $ip       = $ENV{'REMOTE_ADDR'};
1268                 # if they specify at login, use that
1269                 if ($query->param('branch')) {
1270                     $branchcode  = $query->param('branch');
1271                     $branchname = GetBranchName($branchcode);
1272                 }
1273                 my $branches = GetBranches();
1274                 my @branchesloop;
1275                 foreach my $br ( keys %$branches ) {
1276                     #     now we work with the treatment of ip
1277                     my $domain = $branches->{$br}->{'branchip'};
1278                     if ( $domain && $ip =~ /^$domain/ ) {
1279                         $branchcode = $branches->{$br}->{'branchcode'};
1280
1281                         # new op dev : add the branchprinter and branchname in the cookie
1282                         $branchprinter = $branches->{$br}->{'branchprinter'};
1283                         $branchname    = $branches->{$br}->{'branchname'};
1284                     }
1285                 }
1286                 $session->param('number',$borrowernumber);
1287                 $session->param('id',$userid);
1288                 $session->param('cardnumber',$cardnumber);
1289                 $session->param('firstname',$firstname);
1290                 $session->param('surname',$surname);
1291                 $session->param('branch',$branchcode);
1292                 $session->param('branchname',$branchname);
1293                 $session->param('flags',$userflags);
1294                 $session->param('emailaddress',$emailaddress);
1295                 $session->param('ip',$session->remote_addr());
1296                 $session->param('lasttime',time());
1297             } elsif ( $return == 2 ) {
1298                 #We suppose the user is the superlibrarian
1299                 $session->param('number',0);
1300                 $session->param('id',C4::Context->config('user'));
1301                 $session->param('cardnumber',C4::Context->config('user'));
1302                 $session->param('firstname',C4::Context->config('user'));
1303                 $session->param('surname',C4::Context->config('user'));
1304                 $session->param('branch','NO_LIBRARY_SET');
1305                 $session->param('branchname','NO_LIBRARY_SET');
1306                 $session->param('flags',1);
1307                 $session->param('emailaddress', C4::Context->preference('KohaAdminEmailAddress'));
1308                 $session->param('ip',$session->remote_addr());
1309                 $session->param('lasttime',time());
1310             }
1311             C4::Context::set_userenv(
1312                 $session->param('number'),       $session->param('id'),
1313                 $session->param('cardnumber'),   $session->param('firstname'),
1314                 $session->param('surname'),      $session->param('branch'),
1315                 $session->param('branchname'),   $session->param('flags'),
1316                 $session->param('emailaddress'), $session->param('branchprinter')
1317             );
1318             return ("ok", $cookie, $sessionID);
1319         } else {
1320             return ("failed", undef, undef);
1321         }
1322     }
1323 }
1324
1325 =head2 check_cookie_auth
1326
1327   ($status, $sessionId) = check_api_auth($cookie, $userflags);
1328
1329 Given a CGISESSID cookie set during a previous login to Koha, determine
1330 if the user has the privileges specified by C<$userflags>.
1331
1332 C<check_cookie_auth> is meant for authenticating special services
1333 such as tools/upload-file.pl that are invoked by other pages that
1334 have been authenticated in the usual way.
1335
1336 Possible return values in C<$status> are:
1337
1338 =over
1339
1340 =item "ok" -- user authenticated; C<$sessionID> have valid values.
1341
1342 =item "failed" -- credentials are not correct; C<$sessionid> are undef
1343
1344 =item "maintenance" -- DB is in maintenance mode; no login possible at the moment
1345
1346 =item "expired -- session cookie has expired; API user should resubmit userid and password
1347
1348 =back
1349
1350 =cut
1351
1352 sub check_cookie_auth {
1353     my $cookie = shift;
1354     my $flagsrequired = shift;
1355
1356     my $dbh     = C4::Context->dbh;
1357     my $timeout = _timeout_syspref();
1358
1359     unless (C4::Context->preference('Version')) {
1360         # database has not been installed yet
1361         return ("maintenance", undef);
1362     }
1363     my $kohaversion=C4::Context::KOHAVERSION;
1364     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
1365     if (C4::Context->preference('Version') < $kohaversion) {
1366         # database in need of version update; assume that
1367         # no API should be called while databsae is in
1368         # this condition.
1369         return ("maintenance", undef);
1370     }
1371
1372     # FIXME -- most of what follows is a copy-and-paste
1373     # of code from checkauth.  There is an obvious need
1374     # for refactoring to separate the various parts of
1375     # the authentication code, but as of 2007-11-23 this
1376     # is deferred so as to not introduce bugs into the
1377     # regular authentication code for Koha 3.0.
1378
1379     # see if we have a valid session cookie already
1380     # however, if a userid parameter is present (i.e., from
1381     # a form submission, assume that any current cookie
1382     # is to be ignored
1383     unless (defined $cookie and $cookie) {
1384         return ("failed", undef);
1385     }
1386     my $sessionID = $cookie;
1387     my $session = get_session($sessionID);
1388     C4::Context->_new_userenv($sessionID);
1389     if ($session) {
1390         C4::Context::set_userenv(
1391             $session->param('number'),       $session->param('id'),
1392             $session->param('cardnumber'),   $session->param('firstname'),
1393             $session->param('surname'),      $session->param('branch'),
1394             $session->param('branchname'),   $session->param('flags'),
1395             $session->param('emailaddress'), $session->param('branchprinter')
1396         );
1397
1398         my $ip = $session->param('ip');
1399         my $lasttime = $session->param('lasttime');
1400         my $userid = $session->param('id');
1401         if ( $lasttime < time() - $timeout ) {
1402             # time out
1403             $session->delete();
1404             C4::Context->_unset_userenv($sessionID);
1405             $userid    = undef;
1406             $sessionID = undef;
1407             return ("expired", undef);
1408         } elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) {
1409             # IP address changed
1410             $session->delete();
1411             C4::Context->_unset_userenv($sessionID);
1412             $userid    = undef;
1413             $sessionID = undef;
1414             return ("expired", undef);
1415         } else {
1416             $session->param('lasttime',time());
1417             my $flags = haspermission($userid, $flagsrequired);
1418             if ($flags) {
1419                 return ("ok", $sessionID);
1420             } else {
1421                 $session->delete();
1422                 C4::Context->_unset_userenv($sessionID);
1423                 $userid    = undef;
1424                 $sessionID = undef;
1425                 return ("failed", undef);
1426             }
1427         }
1428     } else {
1429         return ("expired", undef);
1430     }
1431 }
1432
1433 =head2 get_session
1434
1435   use CGI::Session;
1436   my $session = get_session($sessionID);
1437
1438 Given a session ID, retrieve the CGI::Session object used to store
1439 the session's state.  The session object can be used to store
1440 data that needs to be accessed by different scripts during a
1441 user's session.
1442
1443 If the C<$sessionID> parameter is an empty string, a new session
1444 will be created.
1445
1446 =cut
1447
1448 sub get_session {
1449     my $sessionID = shift;
1450     my $storage_method = C4::Context->preference('SessionStorage');
1451     my $dbh = C4::Context->dbh;
1452     my $session;
1453     if ($storage_method eq 'mysql'){
1454         $session = new CGI::Session("driver:MySQL;serializer:yaml;id:md5", $sessionID, {Handle=>$dbh});
1455     }
1456     elsif ($storage_method eq 'Pg') {
1457         $session = new CGI::Session("driver:PostgreSQL;serializer:yaml;id:md5", $sessionID, {Handle=>$dbh});
1458     }
1459     elsif ($storage_method eq 'memcached' && C4::Context->ismemcached){
1460     $session = new CGI::Session("driver:memcached;serializer:yaml;id:md5", $sessionID, { Memcached => C4::Context->memcached } );
1461     }
1462     else {
1463         # catch all defaults to tmp should work on all systems
1464         $session = new CGI::Session("driver:File;serializer:yaml;id:md5", $sessionID, {Directory=>'/tmp'});
1465     }
1466     return $session;
1467 }
1468
1469 sub checkpw {
1470
1471     my ( $dbh, $userid, $password, $query ) = @_;
1472     if ($ldap) {
1473         $debug and print STDERR "## checkpw - checking LDAP\n";
1474         my ($retval,$retcard,$retuserid) = checkpw_ldap(@_);    # EXTERNAL AUTH
1475         ($retval) and return ($retval,$retcard,$retuserid);
1476     }
1477
1478     if ($cas && $query && $query->param('ticket')) {
1479         $debug and print STDERR "## checkpw - checking CAS\n";
1480     # In case of a CAS authentication, we use the ticket instead of the password
1481     my $ticket = $query->param('ticket');
1482         my ($retval,$retcard,$retuserid) = checkpw_cas($dbh, $ticket, $query);    # EXTERNAL AUTH
1483         ($retval) and return ($retval,$retcard,$retuserid);
1484     return 0;
1485     }
1486
1487     # INTERNAL AUTH
1488     my $sth =
1489       $dbh->prepare(
1490 "select password,cardnumber,borrowernumber,userid,firstname,surname,branchcode,flags from borrowers where userid=?"
1491       );
1492     $sth->execute($userid);
1493     if ( $sth->rows ) {
1494         my ( $md5password, $cardnumber, $borrowernumber, $userid, $firstname,
1495             $surname, $branchcode, $flags )
1496           = $sth->fetchrow;
1497         if ( md5_base64($password) eq $md5password and $md5password ne "!") {
1498
1499             C4::Context->set_userenv( "$borrowernumber", $userid, $cardnumber,
1500                 $firstname, $surname, $branchcode, $flags );
1501             return 1, $cardnumber, $userid;
1502         }
1503     }
1504     $sth =
1505       $dbh->prepare(
1506 "select password,cardnumber,borrowernumber,userid, firstname,surname,branchcode,flags from borrowers where cardnumber=?"
1507       );
1508     $sth->execute($userid);
1509     if ( $sth->rows ) {
1510         my ( $md5password, $cardnumber, $borrowernumber, $userid, $firstname,
1511             $surname, $branchcode, $flags )
1512           = $sth->fetchrow;
1513         if ( md5_base64($password) eq $md5password ) {
1514
1515             C4::Context->set_userenv( $borrowernumber, $userid, $cardnumber,
1516                 $firstname, $surname, $branchcode, $flags );
1517             return 1, $cardnumber, $userid;
1518         }
1519     }
1520     if (   $userid && $userid eq C4::Context->config('user')
1521         && "$password" eq C4::Context->config('pass') )
1522     {
1523
1524 # Koha superuser account
1525 #     C4::Context->set_userenv(0,0,C4::Context->config('user'),C4::Context->config('user'),C4::Context->config('user'),"",1);
1526         return 2;
1527     }
1528     if (   $userid && $userid eq 'demo'
1529         && "$password" eq 'demo'
1530         && C4::Context->config('demo') )
1531     {
1532
1533 # DEMO => the demo user is allowed to do everything (if demo set to 1 in koha.conf
1534 # some features won't be effective : modify systempref, modify MARC structure,
1535         return 2;
1536     }
1537     return 0;
1538 }
1539
1540 =head2 getuserflags
1541
1542     my $authflags = getuserflags($flags, $userid, [$dbh]);
1543
1544 Translates integer flags into permissions strings hash.
1545
1546 C<$flags> is the integer userflags value ( borrowers.userflags )
1547 C<$userid> is the members.userid, used for building subpermissions
1548 C<$authflags> is a hashref of permissions
1549
1550 =cut
1551
1552 sub getuserflags {
1553     my $flags   = shift;
1554     my $userid  = shift;
1555     my $dbh     = @_ ? shift : C4::Context->dbh;
1556     my $userflags;
1557     {
1558         # I don't want to do this, but if someone logs in as the database
1559         # user, it would be preferable not to spam them to death with
1560         # numeric warnings. So, we make $flags numeric.
1561         no warnings 'numeric';
1562         $flags += 0;
1563     }
1564     my $sth = $dbh->prepare("SELECT bit, flag, defaulton FROM userflags");
1565     $sth->execute;
1566
1567     while ( my ( $bit, $flag, $defaulton ) = $sth->fetchrow ) {
1568         if ( ( $flags & ( 2**$bit ) ) || $defaulton ) {
1569             $userflags->{$flag} = 1;
1570         }
1571         else {
1572             $userflags->{$flag} = 0;
1573         }
1574     }
1575
1576     # get subpermissions and merge with top-level permissions
1577     my $user_subperms = get_user_subpermissions($userid);
1578     foreach my $module (keys %$user_subperms) {
1579         next if $userflags->{$module} == 1; # user already has permission for everything in this module
1580         $userflags->{$module} = $user_subperms->{$module};
1581     }
1582
1583     return $userflags;
1584 }
1585
1586 =head2 get_user_subpermissions
1587
1588   $user_perm_hashref = get_user_subpermissions($userid);
1589
1590 Given the userid (note, not the borrowernumber) of a staff user,
1591 return a hashref of hashrefs of the specific subpermissions
1592 accorded to the user.  An example return is
1593
1594  {
1595     tools => {
1596         export_catalog => 1,
1597         import_patrons => 1,
1598     }
1599  }
1600
1601 The top-level hash-key is a module or function code from
1602 userflags.flag, while the second-level key is a code
1603 from permissions.
1604
1605 The results of this function do not give a complete picture
1606 of the functions that a staff user can access; it is also
1607 necessary to check borrowers.flags.
1608
1609 =cut
1610
1611 sub get_user_subpermissions {
1612     my $userid = shift;
1613
1614     my $dbh = C4::Context->dbh;
1615     my $sth = $dbh->prepare("SELECT flag, user_permissions.code
1616                              FROM user_permissions
1617                              JOIN permissions USING (module_bit, code)
1618                              JOIN userflags ON (module_bit = bit)
1619                              JOIN borrowers USING (borrowernumber)
1620                              WHERE userid = ?");
1621     $sth->execute($userid);
1622
1623     my $user_perms = {};
1624     while (my $perm = $sth->fetchrow_hashref) {
1625         $user_perms->{$perm->{'flag'}}->{$perm->{'code'}} = 1;
1626     }
1627     return $user_perms;
1628 }
1629
1630 =head2 get_all_subpermissions
1631
1632   my $perm_hashref = get_all_subpermissions();
1633
1634 Returns a hashref of hashrefs defining all specific
1635 permissions currently defined.  The return value
1636 has the same structure as that of C<get_user_subpermissions>,
1637 except that the innermost hash value is the description
1638 of the subpermission.
1639
1640 =cut
1641
1642 sub get_all_subpermissions {
1643     my $dbh = C4::Context->dbh;
1644     my $sth = $dbh->prepare("SELECT flag, code, description
1645                              FROM permissions
1646                              JOIN userflags ON (module_bit = bit)");
1647     $sth->execute();
1648
1649     my $all_perms = {};
1650     while (my $perm = $sth->fetchrow_hashref) {
1651         $all_perms->{$perm->{'flag'}}->{$perm->{'code'}} = $perm->{'description'};
1652     }
1653     return $all_perms;
1654 }
1655
1656 =head2 haspermission
1657
1658   $flags = ($userid, $flagsrequired);
1659
1660 C<$userid> the userid of the member
1661 C<$flags> is a hashref of required flags like C<$borrower-&lt;{authflags}>
1662
1663 Returns member's flags or 0 if a permission is not met.
1664
1665 =cut
1666
1667 sub haspermission {
1668     my ($userid, $flagsrequired) = @_;
1669     my $sth = C4::Context->dbh->prepare("SELECT flags FROM borrowers WHERE userid=?");
1670     $sth->execute($userid);
1671     my $flags = getuserflags($sth->fetchrow(), $userid);
1672     if ( $userid eq C4::Context->config('user') ) {
1673         # Super User Account from /etc/koha.conf
1674         $flags->{'superlibrarian'} = 1;
1675     }
1676     elsif ( $userid eq 'demo' && C4::Context->config('demo') ) {
1677         # Demo user that can do "anything" (demo=1 in /etc/koha.conf)
1678         $flags->{'superlibrarian'} = 1;
1679     }
1680
1681     return $flags if $flags->{superlibrarian};
1682
1683     foreach my $module ( keys %$flagsrequired ) {
1684         my $subperm = $flagsrequired->{$module};
1685         if ($subperm eq '*') {
1686             return 0 unless ( $flags->{$module} == 1 or ref($flags->{$module}) );
1687         } else {
1688             return 0 unless ( $flags->{$module} == 1 or
1689                                 ( ref($flags->{$module}) and
1690                                   exists $flags->{$module}->{$subperm} and
1691                                   $flags->{$module}->{$subperm} == 1
1692                                 )
1693                             );
1694         }
1695     }
1696     return $flags;
1697     #FIXME - This fcn should return the failed permission so a suitable error msg can be delivered.
1698 }
1699
1700
1701 sub getborrowernumber {
1702     my ($userid) = @_;
1703     my $userenv = C4::Context->userenv;
1704     if ( defined( $userenv ) && ref( $userenv ) eq 'HASH' && $userenv->{number} ) {
1705         return $userenv->{number};
1706     }
1707     my $dbh = C4::Context->dbh;
1708     for my $field ( 'userid', 'cardnumber' ) {
1709         my $sth =
1710           $dbh->prepare("select borrowernumber from borrowers where $field=?");
1711         $sth->execute($userid);
1712         if ( $sth->rows ) {
1713             my ($bnumber) = $sth->fetchrow;
1714             return $bnumber;
1715         }
1716     }
1717     return 0;
1718 }
1719
1720
1721 END { }    # module clean-up code here (global destructor)
1722 1;
1723 __END__
1724
1725 =head1 SEE ALSO
1726
1727 CGI(3)
1728
1729 C4::Output(3)
1730
1731 Digest::MD5(3)
1732
1733 =cut