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 Storable qw(thaw freeze);
  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::Branch; # GetBranches
  31 use C4::VirtualShelves;
  32 use POSIX qw/strftime/;
  33 use List::MoreUtils qw/ any /;
  34
  35 # use utf8;
  36 use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $debug $ldap $cas $caslogout);
  37
  38 BEGIN {
  39     sub psgi_env { any { /^psgi\./ } keys %ENV }
  40     sub safe_exit {
  41     if ( psgi_env ) { die 'psgi:exit' }
  42     else { exit }
  43     }
  44     $VERSION     = 3.07.00.049;   # set version for version checking
  45
  46     $debug       = $ENV{DEBUG};
  47     @ISA         = qw(Exporter);
  48     @EXPORT      = qw(&checkauth &get_template_and_user &haspermission &get_user_subpermissions);
  49     @EXPORT_OK   = qw(&check_api_auth &get_session &check_cookie_auth &checkpw &get_all_subpermissions &get_user_subpermissions);
  50     %EXPORT_TAGS = ( EditPermissions => [qw(get_all_subpermissions get_user_subpermissions)] );
  51     $ldap        = C4::Context->config('useldapserver') || 0;
  52     $cas         = C4::Context->preference('casAuthentication');
  53     $caslogout   = C4::Context->preference('casLogout');
  54     require C4::Auth_with_cas;             # no import
  55     if ($ldap) {
  56     require C4::Auth_with_ldap;
  57     import C4::Auth_with_ldap qw(checkpw_ldap);
  58     }
  59     if ($cas) {
  60         import  C4::Auth_with_cas qw(check_api_auth_cas checkpw_cas login_cas logout_cas login_cas_url);
  61     }
  62
  63 }
  64
  65 =head1 NAME
  66
  67 C4::Auth - Authenticates Koha users
  68
  69 =head1 SYNOPSIS
  70
  71   use CGI;
  72   use C4::Auth;
  73   use C4::Output;
  74
  75   my $query = new CGI;
  76
  77   my ($template, $borrowernumber, $cookie)
  78     = get_template_and_user(
  79         {
  80             template_name   => "opac-main.tmpl",
  81             query           => $query,
  82       type            => "opac",
  83       authnotrequired => 1,
  84       flagsrequired   => {borrow => 1, catalogue => '*', tools => 'import_patrons' },
  85   }
  86     );
  87
  88   output_html_with_http_headers $query, $cookie, $template->output;
  89
  90 =head1 DESCRIPTION
  91
  92 The main function of this module is to provide
  93 authentification. However the get_template_and_user function has
  94 been provided so that a users login information is passed along
  95 automatically. This gets loaded into the template.
  96
  97 =head1 FUNCTIONS
  98
  99 =head2 get_template_and_user
 100
 101  my ($template, $borrowernumber, $cookie)
 102      = get_template_and_user(
 103        {
 104          template_name   => "opac-main.tmpl",
 105          query           => $query,
 106          type            => "opac",
 107          authnotrequired => 1,
 108          flagsrequired   => {borrow => 1, catalogue => '*', tools => 'import_patrons' },
 109        }
 110      );
 111
 112 This call passes the C<query>, C<flagsrequired> and C<authnotrequired>
 113 to C<&checkauth> (in this module) to perform authentification.
 114 See C<&checkauth> for an explanation of these parameters.
 115
 116 The C<template_name> is then used to find the correct template for
 117 the page. The authenticated users details are loaded onto the
 118 template in the HTML::Template LOOP variable C<USER_INFO>. Also the
 119 C<sessionID> is passed to the template. This can be used in templates
 120 if cookies are disabled. It needs to be put as and input to every
 121 authenticated page.
 122
 123 More information on the C<gettemplate> sub can be found in the
 124 Output.pm module.
 125
 126 =cut
 127
 128 my $SEARCH_HISTORY_INSERT_SQL =<<EOQ;
 129 INSERT INTO search_history(userid, sessionid, query_desc, query_cgi, total, time            )
 130 VALUES                    (     ?,         ?,          ?,         ?,          ?, FROM_UNIXTIME(?))
 131 EOQ
 132
 133 sub get_template_and_user {
 134     my $in       = shift;
 135     my $template =
 136       C4::Templates::gettemplate( $in->{'template_name'}, $in->{'type'}, $in->{'query'}, $in->{'is_plugin'} );
 137     my ( $user, $cookie, $sessionID, $flags );
 138     if ( $in->{'template_name'} !~m/maintenance/ ) {
 139         ( $user, $cookie, $sessionID, $flags ) = checkauth(
 140             $in->{'query'},
 141             $in->{'authnotrequired'},
 142             $in->{'flagsrequired'},
 143             $in->{'type'}
 144         );
 145     }
 146
 147     my $borrowernumber;
 148     if ($user) {
 149         require C4::Members;
 150         # It's possible for $user to be the borrowernumber if they don't have a
 151         # userid defined (and are logging in through some other method, such
 152         # as SSL certs against an email address)
 153         $borrowernumber = getborrowernumber($user) if defined($user);
 154         if (!defined($borrowernumber) && defined($user)) {
 155             my $borrower = C4::Members::GetMember(borrowernumber => $user);
 156             if ($borrower) {
 157                 $borrowernumber = $user;
 158                 # A bit of a hack, but I don't know there's a nicer way
 159                 # to do it.
 160                 $user = $borrower->{firstname} . ' ' . $borrower->{surname};
 161             }
 162         }
 163
 164         # user info
 165         $template->param( loggedinusername => $user );
 166         $template->param( sessionID        => $sessionID );
 167
 168         my ($total, $pubshelves, $barshelves) = C4::VirtualShelves::GetSomeShelfNames($borrowernumber, 'MASTHEAD');
 169         $template->param(
 170             pubshelves     => $total->{pubtotal},
 171             pubshelvesloop => $pubshelves,
 172             barshelves      => $total->{bartotal},
 173             barshelvesloop  => $barshelves,
 174         );
 175
 176         my ( $borr ) = C4::Members::GetMemberDetails( $borrowernumber );
 177         my @bordat;
 178         $bordat[0] = $borr;
 179         $template->param( "USER_INFO" => \@bordat );
 180
 181         my $all_perms = get_all_subpermissions();
 182
 183         my @flagroots = qw(circulate catalogue parameters borrowers permissions reserveforothers borrow
 184                             editcatalogue updatecharges management tools editauthorities serials reports acquisition);
 185         # We are going to use the $flags returned by checkauth
 186         # to create the template's parameters that will indicate
 187         # which menus the user can access.
 188         if ( $flags && $flags->{superlibrarian}==1 ) {
 189             $template->param( CAN_user_circulate        => 1 );
 190             $template->param( CAN_user_catalogue        => 1 );
 191             $template->param( CAN_user_parameters       => 1 );
 192             $template->param( CAN_user_borrowers        => 1 );
 193             $template->param( CAN_user_permissions      => 1 );
 194             $template->param( CAN_user_reserveforothers => 1 );
 195             $template->param( CAN_user_borrow           => 1 );
 196             $template->param( CAN_user_editcatalogue    => 1 );
 197             $template->param( CAN_user_updatecharges    => 1 );
 198             $template->param( CAN_user_acquisition      => 1 );
 199             $template->param( CAN_user_management       => 1 );
 200             $template->param( CAN_user_tools            => 1 );
 201             $template->param( CAN_user_editauthorities  => 1 );
 202             $template->param( CAN_user_serials          => 1 );
 203             $template->param( CAN_user_reports          => 1 );
 204             $template->param( CAN_user_staffaccess      => 1 );
 205             $template->param( CAN_user_plugins          => 1 );
 206             $template->param( CAN_user_coursereserves   => 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     }
 307
 308     # these template parameters are set the same regardless of $in->{'type'}
 309     $template->param(
 310             "BiblioDefaultView".C4::Context->preference("BiblioDefaultView")         => 1,
 311             EnhancedMessagingPreferences => C4::Context->preference('EnhancedMessagingPreferences'),
 312             GoogleJackets                => C4::Context->preference("GoogleJackets"),
 313             OpenLibraryCovers            => C4::Context->preference("OpenLibraryCovers"),
 314             KohaAdminEmailAddress        => "" . C4::Context->preference("KohaAdminEmailAddress"),
 315             LoginBranchcode              => (C4::Context->userenv?C4::Context->userenv->{"branch"}:undef),
 316             LoginFirstname               => (C4::Context->userenv?C4::Context->userenv->{"firstname"}:"Bel"),
 317             LoginSurname                 => C4::Context->userenv?C4::Context->userenv->{"surname"}:"Inconnu",
 318             emailaddress                 => C4::Context->userenv?C4::Context->userenv->{"emailaddress"}:undef,
 319             loggedinpersona              => C4::Context->userenv?C4::Context->userenv->{"persona"}:undef,
 320             TagsEnabled                  => C4::Context->preference("TagsEnabled"),
 321             hide_marc                    => C4::Context->preference("hide_marc"),
 322             item_level_itypes            => C4::Context->preference('item-level_itypes'),
 323             patronimages                 => C4::Context->preference("patronimages"),
 324             singleBranchMode             => C4::Context->preference("singleBranchMode"),
 325             XSLTDetailsDisplay           => C4::Context->preference("XSLTDetailsDisplay"),
 326             XSLTResultsDisplay           => C4::Context->preference("XSLTResultsDisplay"),
 327             using_https                  => $in->{'query'}->https() ? 1 : 0,
 328             noItemTypeImages             => C4::Context->preference("noItemTypeImages"),
 329             marcflavour                  => C4::Context->preference("marcflavour"),
 330             persona                      => C4::Context->preference("persona"),
 331             UseCourseReserves            => C4::Context->preference("UseCourseReserves"),
 332     );
 333     if ( $in->{'type'} eq "intranet" ) {
 334         $template->param(
 335             AmazonCoverImages           => C4::Context->preference("AmazonCoverImages"),
 336             AutoLocation                => C4::Context->preference("AutoLocation"),
 337             "BiblioDefaultView".C4::Context->preference("IntranetBiblioDefaultView") => 1,
 338             CalendarFirstDayOfWeek      => (C4::Context->preference("CalendarFirstDayOfWeek") eq "Sunday")?0:1,
 339             CircAutocompl               => C4::Context->preference("CircAutocompl"),
 340             FRBRizeEditions             => C4::Context->preference("FRBRizeEditions"),
 341             IndependentBranches         => C4::Context->preference("IndependentBranches"),
 342             IntranetNav                 => C4::Context->preference("IntranetNav"),
 343             IntranetmainUserblock       => C4::Context->preference("IntranetmainUserblock"),
 344             LibraryName                 => C4::Context->preference("LibraryName"),
 345             LoginBranchname             => (C4::Context->userenv?C4::Context->userenv->{"branchname"}:undef),
 346             advancedMARCEditor          => C4::Context->preference("advancedMARCEditor"),
 347             canreservefromotherbranches => C4::Context->preference('canreservefromotherbranches'),
 348             intranetcolorstylesheet     => C4::Context->preference("intranetcolorstylesheet"),
 349             IntranetFavicon             => C4::Context->preference("IntranetFavicon"),
 350             intranetreadinghistory      => C4::Context->preference("intranetreadinghistory"),
 351             intranetstylesheet          => C4::Context->preference("intranetstylesheet"),
 352             IntranetUserCSS             => C4::Context->preference("IntranetUserCSS"),
 353             intranetuserjs              => C4::Context->preference("intranetuserjs"),
 354             intranetbookbag             => C4::Context->preference("intranetbookbag"),
 355             suggestion                  => C4::Context->preference("suggestion"),
 356             virtualshelves              => C4::Context->preference("virtualshelves"),
 357             StaffSerialIssueDisplayCount => C4::Context->preference("StaffSerialIssueDisplayCount"),
 358             EasyAnalyticalRecords       => C4::Context->preference('EasyAnalyticalRecords'),
 359             LocalCoverImages            => C4::Context->preference('LocalCoverImages'),
 360             OPACLocalCoverImages        => C4::Context->preference('OPACLocalCoverImages'),
 361             AllowMultipleCovers         => C4::Context->preference('AllowMultipleCovers'),
 362             EnableBorrowerFiles         => C4::Context->preference('EnableBorrowerFiles'),
 363             UseKohaPlugins              => C4::Context->preference('UseKohaPlugins'),
 364         );
 365     }
 366     else {
 367         warn "template type should be OPAC, here it is=[" . $in->{'type'} . "]" unless ( $in->{'type'} eq 'opac' );
 368         #TODO : replace LibraryName syspref with 'system name', and remove this html processing
 369         my $LibraryNameTitle = C4::Context->preference("LibraryName");
 370         $LibraryNameTitle =~ s/<(?:\/?)(?:br|p)\s*(?:\/?)>/ /sgi;
 371         $LibraryNameTitle =~ s/<(?:[^<>'"]|'(?:[^']*)'|"(?:[^"]*)")*>//sg;
 372         # clean up the busc param in the session if the page is not opac-detail
 373         if (C4::Context->preference("OpacBrowseResults") && $in->{'template_name'} =~ /opac-(.+)\.(?:tt|tmpl)$/ && $1 !~ /^(?:MARC|ISBD)?detail$/) {
 374             my $sessionSearch = get_session($sessionID || $in->{'query'}->cookie("CGISESSID"));
 375             $sessionSearch->clear(["busc"]) if ($sessionSearch->param("busc"));
 376         }
 377         # variables passed from CGI: opac_css_override and opac_search_limits.
 378         my $opac_search_limit = $ENV{'OPAC_SEARCH_LIMIT'};
 379         my $opac_limit_override = $ENV{'OPAC_LIMIT_OVERRIDE'};
 380         my $opac_name = '';
 381         if (($opac_search_limit && $opac_search_limit =~ /branch:(\w+)/ && $opac_limit_override) || ($in->{'query'}->param('limit') && $in->{'query'}->param('limit') =~ /branch:(\w+)/)){
 382             $opac_name = $1;   # opac_search_limit is a branch, so we use it.
 383         } elsif ( $in->{'query'}->param('multibranchlimit') ) {
 384             $opac_name = $in->{'query'}->param('multibranchlimit');
 385         } elsif (C4::Context->preference("SearchMyLibraryFirst") && C4::Context->userenv && C4::Context->userenv->{'branch'}) {
 386             $opac_name = C4::Context->userenv->{'branch'};
 387         }
 388         $template->param(
 389             opaccolorstylesheet       => C4::Context->preference("opaccolorstylesheet"),
 390             AnonSuggestions           => "" . C4::Context->preference("AnonSuggestions"),
 391             AuthorisedValueImages     => C4::Context->preference("AuthorisedValueImages"),
 392             BranchesLoop              => GetBranchesLoop($opac_name),
 393             BranchCategoriesLoop      => GetBranchCategories( undef, undef, 1, $opac_name ),
 394             CalendarFirstDayOfWeek    => (C4::Context->preference("CalendarFirstDayOfWeek") eq "Sunday")?0:1,
 395             LibraryName               => "" . C4::Context->preference("LibraryName"),
 396             LibraryNameTitle          => "" . $LibraryNameTitle,
 397             LoginBranchname           => C4::Context->userenv?C4::Context->userenv->{"branchname"}:"",
 398             OPACAmazonCoverImages     => C4::Context->preference("OPACAmazonCoverImages"),
 399             OPACFRBRizeEditions       => C4::Context->preference("OPACFRBRizeEditions"),
 400             OpacHighlightedWords      => C4::Context->preference("OpacHighlightedWords"),
 401             OPACItemHolds             => C4::Context->preference("OPACItemHolds"),
 402             OPACShelfBrowser          => "". C4::Context->preference("OPACShelfBrowser"),
 403             OpacShowRecentComments    => C4::Context->preference("OpacShowRecentComments"),
 404             OPACURLOpenInNewWindow    => "" . C4::Context->preference("OPACURLOpenInNewWindow"),
 405             OPACUserCSS               => "". C4::Context->preference("OPACUserCSS"),
 406             OPACMobileUserCSS         => "". C4::Context->preference("OPACMobileUserCSS"),
 407             OPACViewOthersSuggestions => "" . C4::Context->preference("OPACViewOthersSuggestions"),
 408             OpacAuthorities           => C4::Context->preference("OpacAuthorities"),
 409             OPACBaseURL               => ($in->{'query'}->https() ? "https://" : "http://") . $ENV{'SERVER_NAME'} .
 410                    ($ENV{'SERVER_PORT'} eq ($in->{'query'}->https() ? "443" : "80") ? '' : ":$ENV{'SERVER_PORT'}"),
 411             opac_css_override         => $ENV{'OPAC_CSS_OVERRIDE'},
 412             opac_search_limit         => $opac_search_limit,
 413             opac_limit_override       => $opac_limit_override,
 414             OpacBrowser               => C4::Context->preference("OpacBrowser"),
 415             OpacCloud                 => C4::Context->preference("OpacCloud"),
 416             OpacKohaUrl               => C4::Context->preference("OpacKohaUrl"),
 417             OpacMainUserBlock         => "" . C4::Context->preference("OpacMainUserBlock"),
 418             OpacMainUserBlockMobile   => "" . C4::Context->preference("OpacMainUserBlockMobile"),
 419             OpacShowFiltersPulldownMobile => C4::Context->preference("OpacShowFiltersPulldownMobile"),
 420             OpacShowLibrariesPulldownMobile => C4::Context->preference("OpacShowLibrariesPulldownMobile"),
 421             OpacNav                   => "" . C4::Context->preference("OpacNav"),
 422             OpacNavRight              => "" . C4::Context->preference("OpacNavRight"),
 423             OpacNavBottom             => "" . C4::Context->preference("OpacNavBottom"),
 424             OpacPasswordChange        => C4::Context->preference("OpacPasswordChange"),
 425             OPACPatronDetails         => C4::Context->preference("OPACPatronDetails"),
 426             OPACPrivacy               => C4::Context->preference("OPACPrivacy"),
 427             OPACFinesTab              => C4::Context->preference("OPACFinesTab"),
 428             OpacTopissue              => C4::Context->preference("OpacTopissue"),
 429             RequestOnOpac             => C4::Context->preference("RequestOnOpac"),
 430             'Version'                 => C4::Context->preference('Version'),
 431             hidelostitems             => C4::Context->preference("hidelostitems"),
 432             mylibraryfirst            => (C4::Context->preference("SearchMyLibraryFirst") && C4::Context->userenv) ? C4::Context->userenv->{'branch'} : '',
 433             opaclayoutstylesheet      => "" . C4::Context->preference("opaclayoutstylesheet"),
 434             opacbookbag               => "" . C4::Context->preference("opacbookbag"),
 435             opaccredits               => "" . C4::Context->preference("opaccredits"),
 436             OpacFavicon               => C4::Context->preference("OpacFavicon"),
 437             opacheader                => "" . C4::Context->preference("opacheader"),
 438             opaclanguagesdisplay      => "" . C4::Context->preference("opaclanguagesdisplay"),
 439             opacreadinghistory        => C4::Context->preference("opacreadinghistory"),
 440             opacsmallimage            => "" . C4::Context->preference("opacsmallimage"),
 441             opacuserjs                => C4::Context->preference("opacuserjs"),
 442             opacuserlogin             => "" . C4::Context->preference("opacuserlogin"),
 443             reviewson                 => C4::Context->preference("reviewson"),
 444             ShowReviewer              => C4::Context->preference("ShowReviewer"),
 445             ShowReviewerPhoto         => C4::Context->preference("ShowReviewerPhoto"),
 446             suggestion                => "" . C4::Context->preference("suggestion"),
 447             virtualshelves            => "" . C4::Context->preference("virtualshelves"),
 448             OPACSerialIssueDisplayCount => C4::Context->preference("OPACSerialIssueDisplayCount"),
 449             OpacAddMastheadLibraryPulldown => C4::Context->preference("OpacAddMastheadLibraryPulldown"),
 450             OPACXSLTDetailsDisplay           => C4::Context->preference("OPACXSLTDetailsDisplay"),
 451             OPACXSLTResultsDisplay           => C4::Context->preference("OPACXSLTResultsDisplay"),
 452             SyndeticsClientCode          => C4::Context->preference("SyndeticsClientCode"),
 453             SyndeticsEnabled             => C4::Context->preference("SyndeticsEnabled"),
 454             SyndeticsCoverImages         => C4::Context->preference("SyndeticsCoverImages"),
 455             SyndeticsTOC                 => C4::Context->preference("SyndeticsTOC"),
 456             SyndeticsSummary             => C4::Context->preference("SyndeticsSummary"),
 457             SyndeticsEditions            => C4::Context->preference("SyndeticsEditions"),
 458             SyndeticsExcerpt             => C4::Context->preference("SyndeticsExcerpt"),
 459             SyndeticsReviews             => C4::Context->preference("SyndeticsReviews"),
 460             SyndeticsAuthorNotes         => C4::Context->preference("SyndeticsAuthorNotes"),
 461             SyndeticsAwards              => C4::Context->preference("SyndeticsAwards"),
 462             SyndeticsSeries              => C4::Context->preference("SyndeticsSeries"),
 463             SyndeticsCoverImageSize      => C4::Context->preference("SyndeticsCoverImageSize"),
 464             OPACLocalCoverImages         => C4::Context->preference("OPACLocalCoverImages"),
 465             PatronSelfRegistration       => C4::Context->preference("PatronSelfRegistration"),
 466             PatronSelfRegistrationDefaultCategory => C4::Context->preference("PatronSelfRegistrationDefaultCategory"),
 467         );
 468
 469         $template->param(OpacPublic => '1') if ($user || C4::Context->preference("OpacPublic"));
 470     }
 471     return ( $template, $borrowernumber, $cookie, $flags);
 472 }
 473
 474 =head2 checkauth
 475
 476   ($userid, $cookie, $sessionID) = &checkauth($query, $noauth, $flagsrequired, $type);
 477
 478 Verifies that the user is authorized to run this script.  If
 479 the user is authorized, a (userid, cookie, session-id, flags)
 480 quadruple is returned.  If the user is not authorized but does
 481 not have the required privilege (see $flagsrequired below), it
 482 displays an error page and exits.  Otherwise, it displays the
 483 login page and exits.
 484
 485 Note that C<&checkauth> will return if and only if the user
 486 is authorized, so it should be called early on, before any
 487 unfinished operations (e.g., if you've opened a file, then
 488 C<&checkauth> won't close it for you).
 489
 490 C<$query> is the CGI object for the script calling C<&checkauth>.
 491
 492 The C<$noauth> argument is optional. If it is set, then no
 493 authorization is required for the script.
 494
 495 C<&checkauth> fetches user and session information from C<$query> and
 496 ensures that the user is authorized to run scripts that require
 497 authorization.
 498
 499 The C<$flagsrequired> argument specifies the required privileges
 500 the user must have if the username and password are correct.
 501 It should be specified as a reference-to-hash; keys in the hash
 502 should be the "flags" for the user, as specified in the Members
 503 intranet module. Any key specified must correspond to a "flag"
 504 in the userflags table. E.g., { circulate => 1 } would specify
 505 that the user must have the "circulate" privilege in order to
 506 proceed. To make sure that access control is correct, the
 507 C<$flagsrequired> parameter must be specified correctly.
 508
 509 Koha also has a concept of sub-permissions, also known as
 510 granular permissions.  This makes the value of each key
 511 in the C<flagsrequired> hash take on an additional
 512 meaning, i.e.,
 513
 514  1
 515
 516 The user must have access to all subfunctions of the module
 517 specified by the hash key.
 518
 519  *
 520
 521 The user must have access to at least one subfunction of the module
 522 specified by the hash key.
 523
 524  specific permission, e.g., 'export_catalog'
 525
 526 The user must have access to the specific subfunction list, which
 527 must correspond to a row in the permissions table.
 528
 529 The C<$type> argument specifies whether the template should be
 530 retrieved from the opac or intranet directory tree.  "opac" is
 531 assumed if it is not specified; however, if C<$type> is specified,
 532 "intranet" is assumed if it is not "opac".
 533
 534 If C<$query> does not have a valid session ID associated with it
 535 (i.e., the user has not logged in) or if the session has expired,
 536 C<&checkauth> presents the user with a login page (from the point of
 537 view of the original script, C<&checkauth> does not return). Once the
 538 user has authenticated, C<&checkauth> restarts the original script
 539 (this time, C<&checkauth> returns).
 540
 541 The login page is provided using a HTML::Template, which is set in the
 542 systempreferences table or at the top of this file. The variable C<$type>
 543 selects which template to use, either the opac or the intranet
 544 authentification template.
 545
 546 C<&checkauth> returns a user ID, a cookie, and a session ID. The
 547 cookie should be sent back to the browser; it verifies that the user
 548 has authenticated.
 549
 550 =cut
 551
 552 sub _version_check {
 553     my $type = shift;
 554     my $query = shift;
 555     my $version;
 556     # If Version syspref is unavailable, it means Koha is beeing installed,
 557     # and so we must redirect to OPAC maintenance page or to the WebInstaller
 558     # also, if OpacMaintenance is ON, OPAC should redirect to maintenance
 559     if (C4::Context->preference('OpacMaintenance') && $type eq 'opac') {
 560         warn "OPAC Install required, redirecting to maintenance";
 561         print $query->redirect("/cgi-bin/koha/maintenance.pl");
 562         safe_exit;
 563     }
 564     unless ( $version = C4::Context->preference('Version') ) {    # assignment, not comparison
 565         if ( $type ne 'opac' ) {
 566             warn "Install required, redirecting to Installer";
 567             print $query->redirect("/cgi-bin/koha/installer/install.pl");
 568         } else {
 569             warn "OPAC Install required, redirecting to maintenance";
 570             print $query->redirect("/cgi-bin/koha/maintenance.pl");
 571         }
 572         safe_exit;
 573     }
 574
 575     # check that database and koha version are the same
 576     # there is no DB version, it's a fresh install,
 577     # go to web installer
 578     # there is a DB version, compare it to the code version
 579     my $kohaversion=C4::Context::KOHAVERSION;
 580     # remove the 3 last . to have a Perl number
 581     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
 582     $debug and print STDERR "kohaversion : $kohaversion\n";
 583     if ($version < $kohaversion){
 584         my $warning = "Database update needed, redirecting to %s. Database is $version and Koha is $kohaversion";
 585         if ($type ne 'opac'){
 586             warn sprintf($warning, 'Installer');
 587             print $query->redirect("/cgi-bin/koha/installer/install.pl?step=3");
 588         } else {
 589             warn sprintf("OPAC: " . $warning, 'maintenance');
 590             print $query->redirect("/cgi-bin/koha/maintenance.pl");
 591         }
 592         safe_exit;
 593     }
 594 }
 595
 596 sub _session_log {
 597     (@_) or return 0;
 598     open my $fh, '>>', "/tmp/sessionlog" or warn "ERROR: Cannot append to /tmp/sessionlog";
 599     printf $fh join("\n",@_);
 600     close $fh;
 601 }
 602
 603 sub _timeout_syspref {
 604     my $timeout = C4::Context->preference('timeout') || 600;
 605     # value in days, convert in seconds
 606     if ($timeout =~ /(\d+)[dD]/) {
 607         $timeout = $1 * 86400;
 608     };
 609     return $timeout;
 610 }
 611
 612 sub checkauth {
 613     my $query = shift;
 614     $debug and warn "Checking Auth";
 615     # $authnotrequired will be set for scripts which will run without authentication
 616     my $authnotrequired = shift;
 617     my $flagsrequired   = shift;
 618     my $type            = shift;
 619     my $persona         = shift;
 620     $type = 'opac' unless $type;
 621
 622     my $dbh     = C4::Context->dbh;
 623     my $timeout = _timeout_syspref();
 624
 625     _version_check($type,$query);
 626     # state variables
 627     my $loggedin = 0;
 628     my %info;
 629     my ( $userid, $cookie, $sessionID, $flags, $barshelves, $pubshelves );
 630     my $logout = $query->param('logout.x');
 631
 632     # This parameter is the name of the CAS server we want to authenticate against,
 633     # when using authentication against multiple CAS servers, as configured in Auth_cas_servers.yaml
 634     my $casparam = $query->param('cas');
 635
 636     if ( $userid = $ENV{'REMOTE_USER'} ) {
 637             # Using Basic Authentication, no cookies required
 638         $cookie = $query->cookie(
 639             -name     => 'CGISESSID',
 640             -value    => '',
 641             -expires  => '',
 642             -HttpOnly => 1,
 643         );
 644         $loggedin = 1;
 645     }
 646     elsif ( $persona ){
 647       # we dont want to set a session because we are being called by a persona callback
 648     }
 649     elsif ( $sessionID = $query->cookie("CGISESSID") )
 650     {    # assignment, not comparison
 651         my $session = get_session($sessionID);
 652         C4::Context->_new_userenv($sessionID);
 653         my ($ip, $lasttime, $sessiontype);
 654         if ($session){
 655             C4::Context::set_userenv(
 656                 $session->param('number'),       $session->param('id'),
 657                 $session->param('cardnumber'),   $session->param('firstname'),
 658                 $session->param('surname'),      $session->param('branch'),
 659                 $session->param('branchname'),   $session->param('flags'),
 660                 $session->param('emailaddress'), $session->param('branchprinter'),
 661                 $session->param('persona')
 662             );
 663             C4::Context::set_shelves_userenv('bar',$session->param('barshelves'));
 664             C4::Context::set_shelves_userenv('pub',$session->param('pubshelves'));
 665             C4::Context::set_shelves_userenv('tot',$session->param('totshelves'));
 666             $debug and printf STDERR "AUTH_SESSION: (%s)\t%s %s - %s\n", map {$session->param($_)} qw(cardnumber firstname surname branch) ;
 667             $ip       = $session->param('ip');
 668             $lasttime = $session->param('lasttime');
 669             $userid   = $session->param('id');
 670             $sessiontype = $session->param('sessiontype') || '';
 671         }
 672         if ( ( ($query->param('koha_login_context')) && ($query->param('userid') ne $session->param('id')) )
 673           || ( $cas && $query->param('ticket') ) ) {
 674             #if a user enters an id ne to the id in the current session, we need to log them in...
 675             #first we need to clear the anonymous session...
 676             $debug and warn "query id = " . $query->param('userid') . " but session id = " . $session->param('id');
 677             $session->flush;
 678             $session->delete();
 679             C4::Context->_unset_userenv($sessionID);
 680             $sessionID = undef;
 681             $userid = undef;
 682         }
 683         elsif ($logout) {
 684             # voluntary logout the user
 685             $session->flush;
 686             $session->delete();
 687             C4::Context->_unset_userenv($sessionID);
 688             #_session_log(sprintf "%20s from %16s logged out at %30s (manually).\n", $userid,$ip,(strftime "%c",localtime));
 689             $sessionID = undef;
 690             $userid    = undef;
 691
 692         if ($cas and $caslogout) {
 693         logout_cas($query);
 694         }
 695         }
 696         elsif ( $lasttime < time() - $timeout ) {
 697             # timed logout
 698             $info{'timed_out'} = 1;
 699             $session->delete() if $session;
 700             C4::Context->_unset_userenv($sessionID);
 701             #_session_log(sprintf "%20s from %16s logged out at %30s (inactivity).\n", $userid,$ip,(strftime "%c",localtime));
 702             $userid    = undef;
 703             $sessionID = undef;
 704         }
 705         elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) {
 706             # Different ip than originally logged in from
 707             $info{'oldip'}        = $ip;
 708             $info{'newip'}        = $ENV{'REMOTE_ADDR'};
 709             $info{'different_ip'} = 1;
 710             $session->delete();
 711             C4::Context->_unset_userenv($sessionID);
 712             #_session_log(sprintf "%20s from %16s logged out at %30s (ip changed to %16s).\n", $userid,$ip,(strftime "%c",localtime), $info{'newip'});
 713             $sessionID = undef;
 714             $userid    = undef;
 715         }
 716         else {
 717             $cookie = $query->cookie(
 718                 -name     => 'CGISESSID',
 719                 -value    => $session->id,
 720                 -HttpOnly => 1
 721             );
 722             $session->param( 'lasttime', time() );
 723             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...
 724                 $flags = haspermission($userid, $flagsrequired);
 725                 if ($flags) {
 726                     $loggedin = 1;
 727                 } else {
 728                     $info{'nopermission'} = 1;
 729                 }
 730             }
 731         }
 732     }
 733     unless ($userid || $sessionID) {
 734
 735         #we initiate a session prior to checking for a username to allow for anonymous sessions...
 736         my $session = get_session("") or die "Auth ERROR: Cannot get_session()";
 737         my $sessionID = $session->id;
 738         C4::Context->_new_userenv($sessionID);
 739         $cookie = $query->cookie(
 740             -name     => 'CGISESSID',
 741             -value    => $session->id,
 742             -HttpOnly => 1
 743         );
 744     $userid = $query->param('userid');
 745         if (   ( $cas && $query->param('ticket') )
 746             || $userid
 747             || ( my $pki_field = C4::Context->preference('AllowPKIAuth') ) ne
 748             'None' || $persona )
 749         {
 750             my $password = $query->param('password');
 751
 752             my ( $return, $cardnumber );
 753             if ( $cas && $query->param('ticket') ) {
 754                 my $retuserid;
 755                 ( $return, $cardnumber, $retuserid ) =
 756                   checkpw( $dbh, $userid, $password, $query );
 757                 $userid = $retuserid;
 758                 $info{'invalidCasLogin'} = 1 unless ($return);
 759             }
 760
 761     elsif ($persona) {
 762         my $value = $persona;
 763
 764         # If we're looking up the email, there's a chance that the person
 765         # doesn't have a userid. So if there is none, we pass along the
 766         # borrower number, and the bits of code that need to know the user
 767         # ID will have to be smart enough to handle that.
 768         require C4::Members;
 769         my @users_info = C4::Members::GetBorrowersWithEmail($value);
 770         if (@users_info) {
 771
 772             # First the userid, then the borrowernum
 773             $value = $users_info[0][1] || $users_info[0][0];
 774         }
 775         else {
 776             undef $value;
 777         }
 778         $return = $value ? 1 : 0;
 779         $userid = $value;
 780     }
 781
 782     elsif (
 783                 ( $pki_field eq 'Common Name' && $ENV{'SSL_CLIENT_S_DN_CN'} )
 784                 || (   $pki_field eq 'emailAddress'
 785                     && $ENV{'SSL_CLIENT_S_DN_Email'} )
 786               )
 787             {
 788                 my $value;
 789                 if ( $pki_field eq 'Common Name' ) {
 790                     $value = $ENV{'SSL_CLIENT_S_DN_CN'};
 791                 }
 792                 elsif ( $pki_field eq 'emailAddress' ) {
 793                     $value = $ENV{'SSL_CLIENT_S_DN_Email'};
 794
 795               # If we're looking up the email, there's a chance that the person
 796               # doesn't have a userid. So if there is none, we pass along the
 797               # borrower number, and the bits of code that need to know the user
 798               # ID will have to be smart enough to handle that.
 799                     require C4::Members;
 800                     my @users_info = C4::Members::GetBorrowersWithEmail($value);
 801                     if (@users_info) {
 802
 803                         # First the userid, then the borrowernum
 804                         $value = $users_info[0][1] || $users_info[0][0];
 805                     } else {
 806                         undef $value;
 807                     }
 808                 }
 809
 810
 811                 $return = $value ? 1 : 0;
 812                 $userid = $value;
 813
 814     }
 815             else {
 816                 my $retuserid;
 817                 ( $return, $cardnumber, $retuserid ) =
 818                   checkpw( $dbh, $userid, $password, $query );
 819                 $userid = $retuserid if ( $retuserid ne '' );
 820         }
 821         if ($return) {
 822                #_session_log(sprintf "%20s from %16s logged in  at %30s.\n", $userid,$ENV{'REMOTE_ADDR'},(strftime '%c', localtime));
 823                 if ( $flags = haspermission(  $userid, $flagsrequired ) ) {
 824                     $loggedin = 1;
 825                 }
 826                    else {
 827                     $info{'nopermission'} = 1;
 828                     C4::Context->_unset_userenv($sessionID);
 829                 }
 830                 my ($borrowernumber, $firstname, $surname, $userflags,
 831                     $branchcode, $branchname, $branchprinter, $emailaddress);
 832
 833                 if ( $return == 1 ) {
 834                     my $select = "
 835                     SELECT borrowernumber, firstname, surname, flags, borrowers.branchcode,
 836                     branches.branchname    as branchname,
 837                     branches.branchprinter as branchprinter,
 838                     email
 839                     FROM borrowers
 840                     LEFT JOIN branches on borrowers.branchcode=branches.branchcode
 841                     ";
 842                     my $sth = $dbh->prepare("$select where userid=?");
 843                     $sth->execute($userid);
 844                     unless ($sth->rows) {
 845                         $debug and print STDERR "AUTH_1: no rows for userid='$userid'\n";
 846                         $sth = $dbh->prepare("$select where cardnumber=?");
 847                         $sth->execute($cardnumber);
 848
 849                         unless ($sth->rows) {
 850                             $debug and print STDERR "AUTH_2a: no rows for cardnumber='$cardnumber'\n";
 851                             $sth->execute($userid);
 852                             unless ($sth->rows) {
 853                                 $debug and print STDERR "AUTH_2b: no rows for userid='$userid' AS cardnumber\n";
 854                             }
 855                         }
 856                     }
 857                     if ($sth->rows) {
 858                         ($borrowernumber, $firstname, $surname, $userflags,
 859                             $branchcode, $branchname, $branchprinter, $emailaddress) = $sth->fetchrow;
 860                         $debug and print STDERR "AUTH_3 results: " .
 861                         "$cardnumber,$borrowernumber,$userid,$firstname,$surname,$userflags,$branchcode,$emailaddress\n";
 862                     } else {
 863                         print STDERR "AUTH_3: no results for userid='$userid', cardnumber='$cardnumber'.\n";
 864                     }
 865
 866 # launch a sequence to check if we have a ip for the branch, i
 867 # if we have one we replace the branchcode of the userenv by the branch bound in the ip.
 868
 869                     my $ip       = $ENV{'REMOTE_ADDR'};
 870                     # if they specify at login, use that
 871                     if ($query->param('branch')) {
 872                         $branchcode  = $query->param('branch');
 873                         $branchname = GetBranchName($branchcode);
 874                     }
 875                     my $branches = GetBranches();
 876                     if (C4::Context->boolean_preference('IndependentBranches') && C4::Context->boolean_preference('Autolocation')){
 877                         # we have to check they are coming from the right ip range
 878                         my $domain = $branches->{$branchcode}->{'branchip'};
 879                         if ($ip !~ /^$domain/){
 880                             $loggedin=0;
 881                             $info{'wrongip'} = 1;
 882                         }
 883                     }
 884
 885                     my @branchesloop;
 886                     foreach my $br ( keys %$branches ) {
 887                         #     now we work with the treatment of ip
 888                         my $domain = $branches->{$br}->{'branchip'};
 889                         if ( $domain && $ip =~ /^$domain/ ) {
 890                             $branchcode = $branches->{$br}->{'branchcode'};
 891
 892                             # new op dev : add the branchprinter and branchname in the cookie
 893                             $branchprinter = $branches->{$br}->{'branchprinter'};
 894                             $branchname    = $branches->{$br}->{'branchname'};
 895                         }
 896                     }
 897                     $session->param('number',$borrowernumber);
 898                     $session->param('id',$userid);
 899                     $session->param('cardnumber',$cardnumber);
 900                     $session->param('firstname',$firstname);
 901                     $session->param('surname',$surname);
 902                     $session->param('branch',$branchcode);
 903                     $session->param('branchname',$branchname);
 904                     $session->param('flags',$userflags);
 905                     $session->param('emailaddress',$emailaddress);
 906                     $session->param('ip',$session->remote_addr());
 907                     $session->param('lasttime',time());
 908                     $debug and printf STDERR "AUTH_4: (%s)\t%s %s - %s\n", map {$session->param($_)} qw(cardnumber firstname surname branch) ;
 909                 }
 910                 elsif ( $return == 2 ) {
 911                     #We suppose the user is the superlibrarian
 912                     $borrowernumber = 0;
 913                     $session->param('number',0);
 914                     $session->param('id',C4::Context->config('user'));
 915                     $session->param('cardnumber',C4::Context->config('user'));
 916                     $session->param('firstname',C4::Context->config('user'));
 917                     $session->param('surname',C4::Context->config('user'));
 918                     $session->param('branch','NO_LIBRARY_SET');
 919                     $session->param('branchname','NO_LIBRARY_SET');
 920                     $session->param('flags',1);
 921                     $session->param('emailaddress', C4::Context->preference('KohaAdminEmailAddress'));
 922                     $session->param('ip',$session->remote_addr());
 923                     $session->param('lasttime',time());
 924                 }
 925                 if ($persona){
 926                     $session->param('persona',1);
 927                 }
 928                 C4::Context::set_userenv(
 929                     $session->param('number'),       $session->param('id'),
 930                     $session->param('cardnumber'),   $session->param('firstname'),
 931                     $session->param('surname'),      $session->param('branch'),
 932                     $session->param('branchname'),   $session->param('flags'),
 933                     $session->param('emailaddress'), $session->param('branchprinter'),
 934                     $session->param('persona')
 935                 );
 936
 937             }
 938             else {
 939                 if ($userid) {
 940                     $info{'invalid_username_or_password'} = 1;
 941                     C4::Context->_unset_userenv($sessionID);
 942                 }
 943             }
 944         }    # END if ( $userid    = $query->param('userid') )
 945         elsif ($type eq "opac") {
 946             # if we are here this is an anonymous session; add public lists to it and a few other items...
 947             # anonymous sessions are created only for the OPAC
 948             $debug and warn "Initiating an anonymous session...";
 949
 950             # setting a couple of other session vars...
 951             $session->param('ip',$session->remote_addr());
 952             $session->param('lasttime',time());
 953             $session->param('sessiontype','anon');
 954         }
 955     }    # END unless ($userid)
 956
 957     # finished authentification, now respond
 958     if ( $loggedin || $authnotrequired )
 959     {
 960         # successful login
 961         unless ($cookie) {
 962             $cookie = $query->cookie(
 963                 -name     => 'CGISESSID',
 964                 -value    => '',
 965                 -HttpOnly => 1
 966             );
 967         }
 968         return ( $userid, $cookie, $sessionID, $flags );
 969     }
 970
 971 #
 972 #
 973 # AUTH rejected, show the login/password template, after checking the DB.
 974 #
 975 #
 976
 977     # get the inputs from the incoming query
 978     my @inputs = ();
 979     foreach my $name ( param $query) {
 980         (next) if ( $name eq 'userid' || $name eq 'password' || $name eq 'ticket' );
 981         my $value = $query->param($name);
 982         push @inputs, { name => $name, value => $value };
 983     }
 984
 985     my $template_name = ( $type eq 'opac' ) ? 'opac-auth.tmpl' : 'auth.tmpl';
 986     my $template = C4::Templates::gettemplate($template_name, $type, $query );
 987     $template->param(
 988         branchloop           => GetBranchesLoop(),
 989         opaccolorstylesheet  => C4::Context->preference("opaccolorstylesheet"),
 990         opaclayoutstylesheet => C4::Context->preference("opaclayoutstylesheet"),
 991         login                => 1,
 992         INPUTS               => \@inputs,
 993         casAuthentication    => C4::Context->preference("casAuthentication"),
 994         suggestion           => C4::Context->preference("suggestion"),
 995         virtualshelves       => C4::Context->preference("virtualshelves"),
 996         LibraryName          => C4::Context->preference("LibraryName"),
 997         opacuserlogin        => C4::Context->preference("opacuserlogin"),
 998         OpacNav              => C4::Context->preference("OpacNav"),
 999         OpacNavRight         => C4::Context->preference("OpacNavRight"),
1000         OpacNavBottom        => C4::Context->preference("OpacNavBottom"),
1001         opaccredits          => C4::Context->preference("opaccredits"),
1002         OpacFavicon          => C4::Context->preference("OpacFavicon"),
1003         opacreadinghistory   => C4::Context->preference("opacreadinghistory"),
1004         opacsmallimage       => C4::Context->preference("opacsmallimage"),
1005         opaclanguagesdisplay => C4::Context->preference("opaclanguagesdisplay"),
1006         opacuserjs           => C4::Context->preference("opacuserjs"),
1007         opacbookbag          => "" . C4::Context->preference("opacbookbag"),
1008         OpacCloud            => C4::Context->preference("OpacCloud"),
1009         OpacTopissue         => C4::Context->preference("OpacTopissue"),
1010         OpacAuthorities      => C4::Context->preference("OpacAuthorities"),
1011         OpacBrowser          => C4::Context->preference("OpacBrowser"),
1012         opacheader           => C4::Context->preference("opacheader"),
1013         TagsEnabled          => C4::Context->preference("TagsEnabled"),
1014         OPACUserCSS           => C4::Context->preference("OPACUserCSS"),
1015         intranetcolorstylesheet => C4::Context->preference("intranetcolorstylesheet"),
1016         intranetstylesheet => C4::Context->preference("intranetstylesheet"),
1017         intranetbookbag    => C4::Context->preference("intranetbookbag"),
1018         IntranetNav        => C4::Context->preference("IntranetNav"),
1019         IntranetFavicon    => C4::Context->preference("IntranetFavicon"),
1020         intranetuserjs     => C4::Context->preference("intranetuserjs"),
1021         IndependentBranches=> C4::Context->preference("IndependentBranches"),
1022         AutoLocation       => C4::Context->preference("AutoLocation"),
1023         wrongip            => $info{'wrongip'},
1024         PatronSelfRegistration => C4::Context->preference("PatronSelfRegistration"),
1025         PatronSelfRegistrationDefaultCategory => C4::Context->preference("PatronSelfRegistrationDefaultCategory"),
1026         persona            => C4::Context->preference("Persona"),
1027         opac_css_override => $ENV{'OPAC_CSS_OVERRIDE'},
1028     );
1029
1030     $template->param( OpacPublic => C4::Context->preference("OpacPublic"));
1031     $template->param( loginprompt => 1 ) unless $info{'nopermission'};
1032
1033     if ($cas) {
1034
1035     # Is authentication against multiple CAS servers enabled?
1036         if (C4::Auth_with_cas::multipleAuth && !$casparam) {
1037         my $casservers = C4::Auth_with_cas::getMultipleAuth();
1038         my @tmplservers;
1039         foreach my $key (keys %$casservers) {
1040         push @tmplservers, {name => $key, value => login_cas_url($query, $key) . "?cas=$key" };
1041         }
1042         $template->param(
1043         casServersLoop => \@tmplservers
1044         );
1045     } else {
1046         $template->param(
1047             casServerUrl    => login_cas_url($query),
1048         );
1049     }
1050
1051     $template->param(
1052             invalidCasLogin => $info{'invalidCasLogin'}
1053         );
1054     }
1055
1056     my $self_url = $query->url( -absolute => 1 );
1057     $template->param(
1058         url         => $self_url,
1059         LibraryName => C4::Context->preference("LibraryName"),
1060     );
1061     $template->param( %info );
1062 #    $cookie = $query->cookie(CGISESSID => $session->id
1063 #   );
1064     print $query->header(
1065         -type   => 'text/html',
1066         -charset => 'utf-8',
1067         -cookie => $cookie
1068       ),
1069       $template->output;
1070     safe_exit;
1071 }
1072
1073 =head2 check_api_auth
1074
1075   ($status, $cookie, $sessionId) = check_api_auth($query, $userflags);
1076
1077 Given a CGI query containing the parameters 'userid' and 'password' and/or a session
1078 cookie, determine if the user has the privileges specified by C<$userflags>.
1079
1080 C<check_api_auth> is is meant for authenticating users of web services, and
1081 consequently will always return and will not attempt to redirect the user
1082 agent.
1083
1084 If a valid session cookie is already present, check_api_auth will return a status
1085 of "ok", the cookie, and the Koha session ID.
1086
1087 If no session cookie is present, check_api_auth will check the 'userid' and 'password
1088 parameters and create a session cookie and Koha session if the supplied credentials
1089 are OK.
1090
1091 Possible return values in C<$status> are:
1092
1093 =over
1094
1095 =item "ok" -- user authenticated; C<$cookie> and C<$sessionid> have valid values.
1096
1097 =item "failed" -- credentials are not correct; C<$cookie> and C<$sessionid> are undef
1098
1099 =item "maintenance" -- DB is in maintenance mode; no login possible at the moment
1100
1101 =item "expired -- session cookie has expired; API user should resubmit userid and password
1102
1103 =back
1104
1105 =cut
1106
1107 sub check_api_auth {
1108     my $query = shift;
1109     my $flagsrequired = shift;
1110
1111     my $dbh     = C4::Context->dbh;
1112     my $timeout = _timeout_syspref();
1113
1114     unless (C4::Context->preference('Version')) {
1115         # database has not been installed yet
1116         return ("maintenance", undef, undef);
1117     }
1118     my $kohaversion=C4::Context::KOHAVERSION;
1119     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
1120     if (C4::Context->preference('Version') < $kohaversion) {
1121         # database in need of version update; assume that
1122         # no API should be called while databsae is in
1123         # this condition.
1124         return ("maintenance", undef, undef);
1125     }
1126
1127     # FIXME -- most of what follows is a copy-and-paste
1128     # of code from checkauth.  There is an obvious need
1129     # for refactoring to separate the various parts of
1130     # the authentication code, but as of 2007-11-19 this
1131     # is deferred so as to not introduce bugs into the
1132     # regular authentication code for Koha 3.0.
1133
1134     # see if we have a valid session cookie already
1135     # however, if a userid parameter is present (i.e., from
1136     # a form submission, assume that any current cookie
1137     # is to be ignored
1138     my $sessionID = undef;
1139     unless ($query->param('userid')) {
1140         $sessionID = $query->cookie("CGISESSID");
1141     }
1142     if ($sessionID && not ($cas && $query->param('PT')) ) {
1143         my $session = get_session($sessionID);
1144         C4::Context->_new_userenv($sessionID);
1145         if ($session) {
1146             C4::Context::set_userenv(
1147                 $session->param('number'),       $session->param('id'),
1148                 $session->param('cardnumber'),   $session->param('firstname'),
1149                 $session->param('surname'),      $session->param('branch'),
1150                 $session->param('branchname'),   $session->param('flags'),
1151                 $session->param('emailaddress'), $session->param('branchprinter')
1152             );
1153
1154             my $ip = $session->param('ip');
1155             my $lasttime = $session->param('lasttime');
1156             my $userid = $session->param('id');
1157             if ( $lasttime < time() - $timeout ) {
1158                 # time out
1159                 $session->delete();
1160                 C4::Context->_unset_userenv($sessionID);
1161                 $userid    = undef;
1162                 $sessionID = undef;
1163                 return ("expired", undef, undef);
1164             } elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) {
1165                 # IP address changed
1166                 $session->delete();
1167                 C4::Context->_unset_userenv($sessionID);
1168                 $userid    = undef;
1169                 $sessionID = undef;
1170                 return ("expired", undef, undef);
1171             } else {
1172                 my $cookie = $query->cookie(
1173                     -name  => 'CGISESSID',
1174                     -value => $session->id,
1175                     -HttpOnly => 1,
1176                 );
1177                 $session->param('lasttime',time());
1178                 my $flags = haspermission($userid, $flagsrequired);
1179                 if ($flags) {
1180                     return ("ok", $cookie, $sessionID);
1181                 } else {
1182                     $session->delete();
1183                     C4::Context->_unset_userenv($sessionID);
1184                     $userid    = undef;
1185                     $sessionID = undef;
1186                     return ("failed", undef, undef);
1187                 }
1188             }
1189         } else {
1190             return ("expired", undef, undef);
1191         }
1192     } else {
1193         # new login
1194         my $userid = $query->param('userid');
1195         my $password = $query->param('password');
1196            my ($return, $cardnumber);
1197
1198     # Proxy CAS auth
1199     if ($cas && $query->param('PT')) {
1200         my $retuserid;
1201         $debug and print STDERR "## check_api_auth - checking CAS\n";
1202         # In case of a CAS authentication, we use the ticket instead of the password
1203         my $PT = $query->param('PT');
1204         ($return,$cardnumber,$userid) = check_api_auth_cas($dbh, $PT, $query);    # EXTERNAL AUTH
1205     } else {
1206         # User / password auth
1207         unless ($userid and $password) {
1208         # caller did something wrong, fail the authenticateion
1209         return ("failed", undef, undef);
1210         }
1211         ( $return, $cardnumber ) = checkpw( $dbh, $userid, $password, $query );
1212     }
1213
1214         if ($return and haspermission(  $userid, $flagsrequired)) {
1215             my $session = get_session("");
1216             return ("failed", undef, undef) unless $session;
1217
1218             my $sessionID = $session->id;
1219             C4::Context->_new_userenv($sessionID);
1220             my $cookie = $query->cookie(
1221                 -name  => 'CGISESSID',
1222                 -value => $sessionID,
1223                 -HttpOnly => 1,
1224             );
1225             if ( $return == 1 ) {
1226                 my (
1227                     $borrowernumber, $firstname,  $surname,
1228                     $userflags,      $branchcode, $branchname,
1229                     $branchprinter,  $emailaddress
1230                 );
1231                 my $sth =
1232                   $dbh->prepare(
1233 "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=?"
1234                   );
1235                 $sth->execute($userid);
1236                 (
1237                     $borrowernumber, $firstname,  $surname,
1238                     $userflags,      $branchcode, $branchname,
1239                     $branchprinter,  $emailaddress
1240                 ) = $sth->fetchrow if ( $sth->rows );
1241
1242                 unless ($sth->rows ) {
1243                     my $sth = $dbh->prepare(
1244 "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=?"
1245                       );
1246                     $sth->execute($cardnumber);
1247                     (
1248                         $borrowernumber, $firstname,  $surname,
1249                         $userflags,      $branchcode, $branchname,
1250                         $branchprinter,  $emailaddress
1251                     ) = $sth->fetchrow if ( $sth->rows );
1252
1253                     unless ( $sth->rows ) {
1254                         $sth->execute($userid);
1255                         (
1256                             $borrowernumber, $firstname, $surname, $userflags,
1257                             $branchcode, $branchname, $branchprinter, $emailaddress
1258                         ) = $sth->fetchrow if ( $sth->rows );
1259                     }
1260                 }
1261
1262                 my $ip       = $ENV{'REMOTE_ADDR'};
1263                 # if they specify at login, use that
1264                 if ($query->param('branch')) {
1265                     $branchcode  = $query->param('branch');
1266                     $branchname = GetBranchName($branchcode);
1267                 }
1268                 my $branches = GetBranches();
1269                 my @branchesloop;
1270                 foreach my $br ( keys %$branches ) {
1271                     #     now we work with the treatment of ip
1272                     my $domain = $branches->{$br}->{'branchip'};
1273                     if ( $domain && $ip =~ /^$domain/ ) {
1274                         $branchcode = $branches->{$br}->{'branchcode'};
1275
1276                         # new op dev : add the branchprinter and branchname in the cookie
1277                         $branchprinter = $branches->{$br}->{'branchprinter'};
1278                         $branchname    = $branches->{$br}->{'branchname'};
1279                     }
1280                 }
1281                 $session->param('number',$borrowernumber);
1282                 $session->param('id',$userid);
1283                 $session->param('cardnumber',$cardnumber);
1284                 $session->param('firstname',$firstname);
1285                 $session->param('surname',$surname);
1286                 $session->param('branch',$branchcode);
1287                 $session->param('branchname',$branchname);
1288                 $session->param('flags',$userflags);
1289                 $session->param('emailaddress',$emailaddress);
1290                 $session->param('ip',$session->remote_addr());
1291                 $session->param('lasttime',time());
1292             } elsif ( $return == 2 ) {
1293                 #We suppose the user is the superlibrarian
1294                 $session->param('number',0);
1295                 $session->param('id',C4::Context->config('user'));
1296                 $session->param('cardnumber',C4::Context->config('user'));
1297                 $session->param('firstname',C4::Context->config('user'));
1298                 $session->param('surname',C4::Context->config('user'));
1299                 $session->param('branch','NO_LIBRARY_SET');
1300                 $session->param('branchname','NO_LIBRARY_SET');
1301                 $session->param('flags',1);
1302                 $session->param('emailaddress', C4::Context->preference('KohaAdminEmailAddress'));
1303                 $session->param('ip',$session->remote_addr());
1304                 $session->param('lasttime',time());
1305             }
1306             C4::Context::set_userenv(
1307                 $session->param('number'),       $session->param('id'),
1308                 $session->param('cardnumber'),   $session->param('firstname'),
1309                 $session->param('surname'),      $session->param('branch'),
1310                 $session->param('branchname'),   $session->param('flags'),
1311                 $session->param('emailaddress'), $session->param('branchprinter')
1312             );
1313             return ("ok", $cookie, $sessionID);
1314         } else {
1315             return ("failed", undef, undef);
1316         }
1317     }
1318 }
1319
1320 =head2 check_cookie_auth
1321
1322   ($status, $sessionId) = check_api_auth($cookie, $userflags);
1323
1324 Given a CGISESSID cookie set during a previous login to Koha, determine
1325 if the user has the privileges specified by C<$userflags>.
1326
1327 C<check_cookie_auth> is meant for authenticating special services
1328 such as tools/upload-file.pl that are invoked by other pages that
1329 have been authenticated in the usual way.
1330
1331 Possible return values in C<$status> are:
1332
1333 =over
1334
1335 =item "ok" -- user authenticated; C<$sessionID> have valid values.
1336
1337 =item "failed" -- credentials are not correct; C<$sessionid> are undef
1338
1339 =item "maintenance" -- DB is in maintenance mode; no login possible at the moment
1340
1341 =item "expired -- session cookie has expired; API user should resubmit userid and password
1342
1343 =back
1344
1345 =cut
1346
1347 sub check_cookie_auth {
1348     my $cookie = shift;
1349     my $flagsrequired = shift;
1350
1351     my $dbh     = C4::Context->dbh;
1352     my $timeout = _timeout_syspref();
1353
1354     unless (C4::Context->preference('Version')) {
1355         # database has not been installed yet
1356         return ("maintenance", undef);
1357     }
1358     my $kohaversion=C4::Context::KOHAVERSION;
1359     $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/;
1360     if (C4::Context->preference('Version') < $kohaversion) {
1361         # database in need of version update; assume that
1362         # no API should be called while databsae is in
1363         # this condition.
1364         return ("maintenance", undef);
1365     }
1366
1367     # FIXME -- most of what follows is a copy-and-paste
1368     # of code from checkauth.  There is an obvious need
1369     # for refactoring to separate the various parts of
1370     # the authentication code, but as of 2007-11-23 this
1371     # is deferred so as to not introduce bugs into the
1372     # regular authentication code for Koha 3.0.
1373
1374     # see if we have a valid session cookie already
1375     # however, if a userid parameter is present (i.e., from
1376     # a form submission, assume that any current cookie
1377     # is to be ignored
1378     unless (defined $cookie and $cookie) {
1379         return ("failed", undef);
1380     }
1381     my $sessionID = $cookie;
1382     my $session = get_session($sessionID);
1383     C4::Context->_new_userenv($sessionID);
1384     if ($session) {
1385         C4::Context::set_userenv(
1386             $session->param('number'),       $session->param('id'),
1387             $session->param('cardnumber'),   $session->param('firstname'),
1388             $session->param('surname'),      $session->param('branch'),
1389             $session->param('branchname'),   $session->param('flags'),
1390             $session->param('emailaddress'), $session->param('branchprinter')
1391         );
1392
1393         my $ip = $session->param('ip');
1394         my $lasttime = $session->param('lasttime');
1395         my $userid = $session->param('id');
1396         if ( $lasttime < time() - $timeout ) {
1397             # time out
1398             $session->delete();
1399             C4::Context->_unset_userenv($sessionID);
1400             $userid    = undef;
1401             $sessionID = undef;
1402             return ("expired", undef);
1403         } elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) {
1404             # IP address changed
1405             $session->delete();
1406             C4::Context->_unset_userenv($sessionID);
1407             $userid    = undef;
1408             $sessionID = undef;
1409             return ("expired", undef);
1410         } else {
1411             $session->param('lasttime',time());
1412             my $flags = haspermission($userid, $flagsrequired);
1413             if ($flags) {
1414                 return ("ok", $sessionID);
1415             } else {
1416                 $session->delete();
1417                 C4::Context->_unset_userenv($sessionID);
1418                 $userid    = undef;
1419                 $sessionID = undef;
1420                 return ("failed", undef);
1421             }
1422         }
1423     } else {
1424         return ("expired", undef);
1425     }
1426 }
1427
1428 =head2 get_session
1429
1430   use CGI::Session;
1431   my $session = get_session($sessionID);
1432
1433 Given a session ID, retrieve the CGI::Session object used to store
1434 the session's state.  The session object can be used to store
1435 data that needs to be accessed by different scripts during a
1436 user's session.
1437
1438 If the C<$sessionID> parameter is an empty string, a new session
1439 will be created.
1440
1441 =cut
1442
1443 sub get_session {
1444     my $sessionID = shift;
1445     my $storage_method = C4::Context->preference('SessionStorage');
1446     my $dbh = C4::Context->dbh;
1447     my $session;
1448     if ($storage_method eq 'mysql'){
1449         $session = new CGI::Session("driver:MySQL;serializer:yaml;id:md5", $sessionID, {Handle=>$dbh});
1450     }
1451     elsif ($storage_method eq 'Pg') {
1452         $session = new CGI::Session("driver:PostgreSQL;serializer:yaml;id:md5", $sessionID, {Handle=>$dbh});
1453     }
1454     elsif ($storage_method eq 'memcached' && C4::Context->ismemcached){
1455     $session = new CGI::Session("driver:memcached;serializer:yaml;id:md5", $sessionID, { Memcached => C4::Context->memcached } );
1456     }
1457     else {
1458         # catch all defaults to tmp should work on all systems
1459         $session = new CGI::Session("driver:File;serializer:yaml;id:md5", $sessionID, {Directory=>'/tmp'});
1460     }
1461     return $session;
1462 }
1463
1464 sub checkpw {
1465
1466     my ( $dbh, $userid, $password, $query ) = @_;
1467     if ($ldap) {
1468         $debug and print STDERR "## checkpw - checking LDAP\n";
1469         my ($retval,$retcard,$retuserid) = checkpw_ldap(@_);    # EXTERNAL AUTH
1470         ($retval) and return ($retval,$retcard,$retuserid);
1471     }
1472
1473     if ($cas && $query && $query->param('ticket')) {
1474         $debug and print STDERR "## checkpw - checking CAS\n";
1475     # In case of a CAS authentication, we use the ticket instead of the password
1476     my $ticket = $query->param('ticket');
1477         my ($retval,$retcard,$retuserid) = checkpw_cas($dbh, $ticket, $query);    # EXTERNAL AUTH
1478         ($retval) and return ($retval,$retcard,$retuserid);
1479     return 0;
1480     }
1481
1482     # INTERNAL AUTH
1483     my $sth =
1484       $dbh->prepare(
1485 "select password,cardnumber,borrowernumber,userid,firstname,surname,branchcode,flags from borrowers where userid=?"
1486       );
1487     $sth->execute($userid);
1488     if ( $sth->rows ) {
1489         my ( $md5password, $cardnumber, $borrowernumber, $userid, $firstname,
1490             $surname, $branchcode, $flags )
1491           = $sth->fetchrow;
1492         if ( md5_base64($password) eq $md5password and $md5password ne "!") {
1493
1494             C4::Context->set_userenv( "$borrowernumber", $userid, $cardnumber,
1495                 $firstname, $surname, $branchcode, $flags );
1496             return 1, $cardnumber, $userid;
1497         }
1498     }
1499     $sth =
1500       $dbh->prepare(
1501 "select password,cardnumber,borrowernumber,userid, firstname,surname,branchcode,flags from borrowers where cardnumber=?"
1502       );
1503     $sth->execute($userid);
1504     if ( $sth->rows ) {
1505         my ( $md5password, $cardnumber, $borrowernumber, $userid, $firstname,
1506             $surname, $branchcode, $flags )
1507           = $sth->fetchrow;
1508         if ( md5_base64($password) eq $md5password ) {
1509
1510             C4::Context->set_userenv( $borrowernumber, $userid, $cardnumber,
1511                 $firstname, $surname, $branchcode, $flags );
1512             return 1, $cardnumber, $userid;
1513         }
1514     }
1515     if (   $userid && $userid eq C4::Context->config('user')
1516         && "$password" eq C4::Context->config('pass') )
1517     {
1518
1519 # Koha superuser account
1520 #     C4::Context->set_userenv(0,0,C4::Context->config('user'),C4::Context->config('user'),C4::Context->config('user'),"",1);
1521         return 2;
1522     }
1523     if (   $userid && $userid eq 'demo'
1524         && "$password" eq 'demo'
1525         && C4::Context->config('demo') )
1526     {
1527
1528 # DEMO => the demo user is allowed to do everything (if demo set to 1 in koha.conf
1529 # some features won't be effective : modify systempref, modify MARC structure,
1530         return 2;
1531     }
1532     return 0;
1533 }
1534
1535 =head2 getuserflags
1536
1537     my $authflags = getuserflags($flags, $userid, [$dbh]);
1538
1539 Translates integer flags into permissions strings hash.
1540
1541 C<$flags> is the integer userflags value ( borrowers.userflags )
1542 C<$userid> is the members.userid, used for building subpermissions
1543 C<$authflags> is a hashref of permissions
1544
1545 =cut
1546
1547 sub getuserflags {
1548     my $flags   = shift;
1549     my $userid  = shift;
1550     my $dbh     = @_ ? shift : C4::Context->dbh;
1551     my $userflags;
1552     {
1553         # I don't want to do this, but if someone logs in as the database
1554         # user, it would be preferable not to spam them to death with
1555         # numeric warnings. So, we make $flags numeric.
1556         no warnings 'numeric';
1557         $flags += 0;
1558     }
1559     my $sth = $dbh->prepare("SELECT bit, flag, defaulton FROM userflags");
1560     $sth->execute;
1561
1562     while ( my ( $bit, $flag, $defaulton ) = $sth->fetchrow ) {
1563         if ( ( $flags & ( 2**$bit ) ) || $defaulton ) {
1564             $userflags->{$flag} = 1;
1565         }
1566         else {
1567             $userflags->{$flag} = 0;
1568         }
1569     }
1570
1571     # get subpermissions and merge with top-level permissions
1572     my $user_subperms = get_user_subpermissions($userid);
1573     foreach my $module (keys %$user_subperms) {
1574         next if $userflags->{$module} == 1; # user already has permission for everything in this module
1575         $userflags->{$module} = $user_subperms->{$module};
1576     }
1577
1578     return $userflags;
1579 }
1580
1581 =head2 get_user_subpermissions
1582
1583   $user_perm_hashref = get_user_subpermissions($userid);
1584
1585 Given the userid (note, not the borrowernumber) of a staff user,
1586 return a hashref of hashrefs of the specific subpermissions
1587 accorded to the user.  An example return is
1588
1589  {
1590     tools => {
1591         export_catalog => 1,
1592         import_patrons => 1,
1593     }
1594  }
1595
1596 The top-level hash-key is a module or function code from
1597 userflags.flag, while the second-level key is a code
1598 from permissions.
1599
1600 The results of this function do not give a complete picture
1601 of the functions that a staff user can access; it is also
1602 necessary to check borrowers.flags.
1603
1604 =cut
1605
1606 sub get_user_subpermissions {
1607     my $userid = shift;
1608
1609     my $dbh = C4::Context->dbh;
1610     my $sth = $dbh->prepare("SELECT flag, user_permissions.code
1611                              FROM user_permissions
1612                              JOIN permissions USING (module_bit, code)
1613                              JOIN userflags ON (module_bit = bit)
1614                              JOIN borrowers USING (borrowernumber)
1615                              WHERE userid = ?");
1616     $sth->execute($userid);
1617
1618     my $user_perms = {};
1619     while (my $perm = $sth->fetchrow_hashref) {
1620         $user_perms->{$perm->{'flag'}}->{$perm->{'code'}} = 1;
1621     }
1622     return $user_perms;
1623 }
1624
1625 =head2 get_all_subpermissions
1626
1627   my $perm_hashref = get_all_subpermissions();
1628
1629 Returns a hashref of hashrefs defining all specific
1630 permissions currently defined.  The return value
1631 has the same structure as that of C<get_user_subpermissions>,
1632 except that the innermost hash value is the description
1633 of the subpermission.
1634
1635 =cut
1636
1637 sub get_all_subpermissions {
1638     my $dbh = C4::Context->dbh;
1639     my $sth = $dbh->prepare("SELECT flag, code, description
1640                              FROM permissions
1641                              JOIN userflags ON (module_bit = bit)");
1642     $sth->execute();
1643
1644     my $all_perms = {};
1645     while (my $perm = $sth->fetchrow_hashref) {
1646         $all_perms->{$perm->{'flag'}}->{$perm->{'code'}} = $perm->{'description'};
1647     }
1648     return $all_perms;
1649 }
1650
1651 =head2 haspermission
1652
1653   $flags = ($userid, $flagsrequired);
1654
1655 C<$userid> the userid of the member
1656 C<$flags> is a hashref of required flags like C<$borrower-&lt;{authflags}>
1657
1658 Returns member's flags or 0 if a permission is not met.
1659
1660 =cut
1661
1662 sub haspermission {
1663     my ($userid, $flagsrequired) = @_;
1664     my $sth = C4::Context->dbh->prepare("SELECT flags FROM borrowers WHERE userid=?");
1665     $sth->execute($userid);
1666     my $flags = getuserflags($sth->fetchrow(), $userid);
1667     if ( $userid eq C4::Context->config('user') ) {
1668         # Super User Account from /etc/koha.conf
1669         $flags->{'superlibrarian'} = 1;
1670     }
1671     elsif ( $userid eq 'demo' && C4::Context->config('demo') ) {
1672         # Demo user that can do "anything" (demo=1 in /etc/koha.conf)
1673         $flags->{'superlibrarian'} = 1;
1674     }
1675
1676     return $flags if $flags->{superlibrarian};
1677
1678     foreach my $module ( keys %$flagsrequired ) {
1679         my $subperm = $flagsrequired->{$module};
1680         if ($subperm eq '*') {
1681             return 0 unless ( $flags->{$module} == 1 or ref($flags->{$module}) );
1682         } else {
1683             return 0 unless ( $flags->{$module} == 1 or
1684                                 ( ref($flags->{$module}) and
1685                                   exists $flags->{$module}->{$subperm} and
1686                                   $flags->{$module}->{$subperm} == 1
1687                                 )
1688                             );
1689         }
1690     }
1691     return $flags;
1692     #FIXME - This fcn should return the failed permission so a suitable error msg can be delivered.
1693 }
1694
1695
1696 sub getborrowernumber {
1697     my ($userid) = @_;
1698     my $userenv = C4::Context->userenv;
1699     if ( defined( $userenv ) && ref( $userenv ) eq 'HASH' && $userenv->{number} ) {
1700         return $userenv->{number};
1701     }
1702     my $dbh = C4::Context->dbh;
1703     for my $field ( 'userid', 'cardnumber' ) {
1704         my $sth =
1705           $dbh->prepare("select borrowernumber from borrowers where $field=?");
1706         $sth->execute($userid);
1707         if ( $sth->rows ) {
1708             my ($bnumber) = $sth->fetchrow;
1709             return $bnumber;
1710         }
1711     }
1712     return 0;
1713 }
1714
1715
1716 END { }    # module clean-up code here (global destructor)
1717 1;
1718 __END__
1719
1720 =head1 SEE ALSO
1721
1722 CGI(3)
1723
1724 C4::Output(3)
1725
1726 Digest::MD5(3)
1727
1728 =cut