# -*- tab-width: 8 -*- # NOTE: This file uses 8-character tabs; do not change the tab size! package C4::Auth; # Copyright 2000-2002 Katipo Communications # # This file is part of Koha. # # Koha is free software; you can redistribute it and/or modify it under the # terms of the GNU General Public License as published by the Free Software # Foundation; either version 2 of the License, or (at your option) any later # version. # # Koha is distributed in the hope that it will be useful, but WITHOUT ANY # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR # A PARTICULAR PURPOSE. See the GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along with # Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place, # Suite 330, Boston, MA 02111-1307 USA use strict; use Digest::MD5 qw(md5_base64); use CGI::Session; require Exporter; use C4::Context; use C4::Output; # to get the template use C4::Members; use C4::Koha; use C4::Branch; # GetBranches use C4::VirtualShelves 3.02 qw(GetShelvesSummary); # use utf8; use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $debug $ldap); BEGIN { $VERSION = 3.02; # set version for version checking $debug = $ENV{DEBUG} || 0 ; @ISA = qw(Exporter); @EXPORT = qw(&checkauth &get_template_and_user); @EXPORT_OK = qw(&check_api_auth &get_session &check_cookie_auth &checkpw &get_all_subpermissions &get_user_subpermissions); %EXPORT_TAGS = (EditPermissions => [qw(get_all_subpermissions get_user_subpermissions)]); $ldap = C4::Context->config('useldapserver') || 0; if ($ldap) { require C4::Auth_with_ldap; # no import import C4::Auth_with_ldap qw(checkpw_ldap); } } =head1 NAME C4::Auth - Authenticates Koha users =head1 SYNOPSIS use CGI; use C4::Auth; use C4::Output; my $query = new CGI; my ($template, $borrowernumber, $cookie) = get_template_and_user( { template_name => "opac-main.tmpl", query => $query, type => "opac", authnotrequired => 1, flagsrequired => {borrow => 1, catalogue => '*', tools => 'import_patrons' }, } ); output_html_with_http_headers $query, $cookie, $template->output; =head1 DESCRIPTION The main function of this module is to provide authentification. However the get_template_and_user function has been provided so that a users login information is passed along automatically. This gets loaded into the template. =head1 FUNCTIONS =over 2 =item get_template_and_user my ($template, $borrowernumber, $cookie) = get_template_and_user( { template_name => "opac-main.tmpl", query => $query, type => "opac", authnotrequired => 1, flagsrequired => {borrow => 1, catalogue => '*', tools => 'import_patrons' }, } ); This call passes the C, C and C to C<&checkauth> (in this module) to perform authentification. See C<&checkauth> for an explanation of these parameters. The C is then used to find the correct template for the page. The authenticated users details are loaded onto the template in the HTML::Template LOOP variable C. Also the C is passed to the template. This can be used in templates if cookies are disabled. It needs to be put as and input to every authenticated page. More information on the C sub can be found in the Output.pm module. =cut sub get_template_and_user { my $in = shift; my $template = gettemplate( $in->{'template_name'}, $in->{'type'}, $in->{'query'} ); my ( $user, $cookie, $sessionID, $flags ) = checkauth( $in->{'query'}, $in->{'authnotrequired'}, $in->{'flagsrequired'}, $in->{'type'} ) unless ($in->{'template_name'}=~/maintenance/); my $borrowernumber; my $insecure = C4::Context->preference('insecure'); if ($user or $insecure) { # load the template variables for stylesheets and JavaScript $template->param( css_libs => $in->{'css_libs'} ); $template->param( css_module => $in->{'css_module'} ); $template->param( css_page => $in->{'css_page'} ); $template->param( css_widgets => $in->{'css_widgets'} ); $template->param( js_libs => $in->{'js_libs'} ); $template->param( js_module => $in->{'js_module'} ); $template->param( js_page => $in->{'js_page'} ); $template->param( js_widgets => $in->{'js_widgets'} ); # user info $template->param( loggedinusername => $user ); $template->param( sessionID => $sessionID ); my $shelves; if ($shelves = C4::Context->get_shelves_userenv()) { $template->param( barshelves => scalar (@$shelves)); $template->param( barshelvesloop => $shelves); } $borrowernumber = getborrowernumber($user); my ( $borr, $alternativeflags ) = GetMemberDetails( $borrowernumber ); my @bordat; $bordat[0] = $borr; $template->param( "USER_INFO" => \@bordat ); my $all_perms = get_all_subpermissions(); my @flagroots = qw(circulate catalogue parameters borrowers permissions reserveforothers borrow editcatalogue updatecharges management tools editauthorities serials reports); # We are going to use the $flags returned by checkauth # to create the template's parameters that will indicate # which menus the user can access. if (( $flags && $flags->{superlibrarian}==1) or $insecure==1) { $template->param( CAN_user_circulate => 1 ); $template->param( CAN_user_catalogue => 1 ); $template->param( CAN_user_parameters => 1 ); $template->param( CAN_user_borrowers => 1 ); $template->param( CAN_user_permissions => 1 ); $template->param( CAN_user_reserveforothers => 1 ); $template->param( CAN_user_borrow => 1 ); $template->param( CAN_user_editcatalogue => 1 ); $template->param( CAN_user_updatecharges => 1 ); $template->param( CAN_user_acquisition => 1 ); $template->param( CAN_user_management => 1 ); $template->param( CAN_user_tools => 1 ); $template->param( CAN_user_editauthorities => 1 ); $template->param( CAN_user_serials => 1 ); $template->param( CAN_user_reports => 1 ); $template->param( CAN_user_staffaccess => 1 ); foreach my $module (keys %$all_perms) { foreach my $subperm (keys %{ $all_perms->{$module} }) { $template->param( "CAN_user_${module}_${subperm}" => 1 ); } } } if (C4::Context->preference('GranularPermissions')) { if ( $flags ) { foreach my $module (keys %$all_perms) { if ( $flags->{$module} == 1) { foreach my $subperm (keys %{ $all_perms->{$module} }) { $template->param( "CAN_user_${module}_${subperm}" => 1 ); } } elsif ( ref($flags->{$module}) ) { foreach my $subperm (keys %{ $flags->{$module} } ) { $template->param( "CAN_user_${module}_${subperm}" => 1 ); } } } } } else { foreach my $module (keys %$all_perms) { foreach my $subperm (keys %{ $all_perms->{$module} }) { $template->param( "CAN_user_${module}_${subperm}" => 1 ); } } } if ($flags) { foreach my $module (keys %$flags) { if ( $flags->{$module} == 1 or ref($flags->{$module}) ) { $template->param( "CAN_user_$module" => 1 ); if ($module eq "parameters") { $template->param( CAN_user_management => 1 ); } } } } } if ( $in->{'type'} eq "intranet" ) { $template->param( intranetcolorstylesheet => C4::Context->preference("intranetcolorstylesheet"), intranetstylesheet => C4::Context->preference("intranetstylesheet"), IntranetNav => C4::Context->preference("IntranetNav"), intranetuserjs => C4::Context->preference("intranetuserjs"), TemplateEncoding => C4::Context->preference("TemplateEncoding"), AmazonContent => C4::Context->preference("AmazonContent"), LibraryName => C4::Context->preference("LibraryName"), LoginBranchcode => (C4::Context->userenv?C4::Context->userenv->{"branch"}:"insecure"), LoginBranchname => (C4::Context->userenv?C4::Context->userenv->{"branchname"}:"insecure"), LoginFirstname => (C4::Context->userenv?C4::Context->userenv->{"firstname"}:"Bel"), LoginSurname => C4::Context->userenv?C4::Context->userenv->{"surname"}:"Inconnu", AutoLocation => C4::Context->preference("AutoLocation"), hide_marc => C4::Context->preference("hide_marc"), patronimages => C4::Context->preference("patronimages"), "BiblioDefaultView".C4::Context->preference("IntranetBiblioDefaultView") => 1, advancedMARCEditor => C4::Context->preference("advancedMARCEditor"), suggestion => C4::Context->preference("suggestion"), virtualshelves => C4::Context->preference("virtualshelves"), LibraryName => C4::Context->preference("LibraryName"), KohaAdminEmailAddress => "" . C4::Context->preference("KohaAdminEmailAddress"), IntranetmainUserblock => C4::Context->preference("IntranetmainUserblock"), IndependantBranches => C4::Context->preference("IndependantBranches"), CircAutocompl => C4::Context->preference("CircAutocompl"), FRBRizeEditions => C4::Context->preference("FRBRizeEditions"), AmazonSimilarItems => C4::Context->preference("AmazonSimilarItems"), 'item-level_itypes' => C4::Context->preference('item-level_itypes'), canreservefromotherbranches => C4::Context->preference('canreservefromotherbranches'), intranetreadinghistory => C4::Context->preference("intranetreadinghistory"), noItemTypeImages => C4::Context->preference("noItemTypeImages"), singleBranchMode => C4::Context->preference("singleBranchMode"), TagsEnabled => C4::Context->preference("TagsEnabled"), GoogleJackets => C4::Context->preference("GoogleJackets"), AuthorisedValueImages => C4::Context->preference("AuthorisedValueImages"), ); } else { warn "template type should be OPAC, here it is=[" . $in->{'type'} . "]" unless ( $in->{'type'} eq 'opac' ); my $LibraryNameTitle = C4::Context->preference("LibraryName"); $LibraryNameTitle =~ s/<(?:\/?)(?:br|p)\s*(?:\/?)>/ /sgi; $LibraryNameTitle =~ s/<(?:[^<>'"]|'(?:[^']*)'|"(?:[^"]*)")*>//sg; $template->param( KohaAdminEmailAddress => "" . C4::Context->preference("KohaAdminEmailAddress"), AnonSuggestions => "" . C4::Context->preference("AnonSuggestions"), suggestion => "" . C4::Context->preference("suggestion"), OPACViewOthersSuggestions => "" . C4::Context->preference("OPACViewOthersSuggestions"), virtualshelves => "" . C4::Context->preference("virtualshelves"), OpacNav => "" . C4::Context->preference("OpacNav"), opacheader => "" . C4::Context->preference("opacheader"), opaccredits => "" . C4::Context->preference("opaccredits"), opacsmallimage => "" . C4::Context->preference("opacsmallimage"), opaclargeimage => "" . C4::Context->preference("opaclargeimage"), opaclayoutstylesheet => "". C4::Context->preference("opaclayoutstylesheet"), opaccolorstylesheet => "". C4::Context->preference("opaccolorstylesheet"), OPACUserCSS => "". C4::Context->preference("OPACUserCSS"), opaclanguagesdisplay => "". C4::Context->preference("opaclanguagesdisplay"), opacuserlogin => "" . C4::Context->preference("opacuserlogin"), OpacMainUserBlock => "" . C4::Context->preference("OpacMainUserBlock"), OPACURLOpenInNewWindow => "" . C4::Context->preference("OPACURLOpenInNewWindow"), opacbookbag => "" . C4::Context->preference("opacbookbag"), TemplateEncoding => "". C4::Context->preference("TemplateEncoding"), AmazonContent => "" . C4::Context->preference("AmazonContent"), OPACShelfBrowser => "". C4::Context->preference("OPACShelfBrowser"), OPACAmazonSimilarItems => "" . C4::Context->preference("OPACAmazonSimilarItems"), LibraryName => "" . C4::Context->preference("LibraryName"), LibraryNameTitle => "" . $LibraryNameTitle, LoginBranchcode => (C4::Context->userenv?C4::Context->userenv->{"branch"}:"insecure"), LoginBranchname => C4::Context->userenv?C4::Context->userenv->{"branchname"}:"", LoginFirstname => (C4::Context->userenv?C4::Context->userenv->{"firstname"}:"Bel"), LoginSurname => C4::Context->userenv?C4::Context->userenv->{"surname"}:"Inconnu", OpacPasswordChange => C4::Context->preference("OpacPasswordChange"), opacreadinghistory => C4::Context->preference("opacreadinghistory"), opacuserjs => C4::Context->preference("opacuserjs"), OpacCloud => C4::Context->preference("OpacCloud"), OpacTopissue => C4::Context->preference("OpacTopissue"), OpacAuthorities => C4::Context->preference("OpacAuthorities"), OpacBrowser => C4::Context->preference("OpacBrowser"), RequestOnOpac => C4::Context->preference("RequestOnOpac"), OPACItemHolds => C4::Context->preference("OPACItemHolds"), reviewson => C4::Context->preference("reviewson"), hide_marc => C4::Context->preference("hide_marc"), patronimages => C4::Context->preference("patronimages"), hidelostitems => C4::Context->preference("hidelostitems"), mylibraryfirst => C4::Context->preference("SearchMyLibraryFirst"), "BiblioDefaultView".C4::Context->preference("BiblioDefaultView") => 1, OPACFRBRizeEditions => C4::Context->preference("OPACFRBRizeEditions"), 'item-level_itypes' => C4::Context->preference('item-level_itypes'), 'Version' => C4::Context->preference('Version'), singleBranchMode => C4::Context->preference("singleBranchMode"), XSLTResultsDisplay => C4::Context->preference("XSLTResultsDisplay"), XSLTDetailsDisplay => C4::Context->preference("XSLTDetailsDisplay"), TagsEnabled => C4::Context->preference("TagsEnabled"), GoogleJackets => C4::Context->preference("GoogleJackets"), AuthorisedValueImages => C4::Context->preference("AuthorisedValueImages"), OPACBaseURL=> ($in->{'query'}->https() ? "https://" : "http://") . $ENV{'SERVER_NAME'} . ($ENV{'SERVER_PORT'} eq ($in->{'query'}->https() ? "443" : "80") ? '' : ":$ENV{'SERVER_PORT'}"), ); } $template->param(listloop=>[{shelfname=>"Freelist", shelfnumber=>110}]); return ( $template, $borrowernumber, $cookie, $flags); } =item checkauth ($userid, $cookie, $sessionID) = &checkauth($query, $noauth, $flagsrequired, $type); Verifies that the user is authorized to run this script. If the user is authorized, a (userid, cookie, session-id, flags) quadruple is returned. If the user is not authorized but does not have the required privilege (see $flagsrequired below), it displays an error page and exits. Otherwise, it displays the login page and exits. Note that C<&checkauth> will return if and only if the user is authorized, so it should be called early on, before any unfinished operations (e.g., if you've opened a file, then C<&checkauth> won't close it for you). C<$query> is the CGI object for the script calling C<&checkauth>. The C<$noauth> argument is optional. If it is set, then no authorization is required for the script. C<&checkauth> fetches user and session information from C<$query> and ensures that the user is authorized to run scripts that require authorization. The C<$flagsrequired> argument specifies the required privileges the user must have if the username and password are correct. It should be specified as a reference-to-hash; keys in the hash should be the "flags" for the user, as specified in the Members intranet module. Any key specified must correspond to a "flag" in the userflags table. E.g., { circulate => 1 } would specify that the user must have the "circulate" privilege in order to proceed. To make sure that access control is correct, the C<$flagsrequired> parameter must be specified correctly. If the GranularPermissions system preference is ON, the value of each key in the C hash takes on an additional meaning, e.g., =item 1 The user must have access to all subfunctions of the module specified by the hash key. =item * The user must have access to at least one subfunction of the module specified by the hash key. =item specific permission, e.g., 'export_catalog' The user must have access to the specific subfunction list, which must correspond to a row in the permissions table. The C<$type> argument specifies whether the template should be retrieved from the opac or intranet directory tree. "opac" is assumed if it is not specified; however, if C<$type> is specified, "intranet" is assumed if it is not "opac". If C<$query> does not have a valid session ID associated with it (i.e., the user has not logged in) or if the session has expired, C<&checkauth> presents the user with a login page (from the point of view of the original script, C<&checkauth> does not return). Once the user has authenticated, C<&checkauth> restarts the original script (this time, C<&checkauth> returns). The login page is provided using a HTML::Template, which is set in the systempreferences table or at the top of this file. The variable C<$type> selects which template to use, either the opac or the intranet authentification template. C<&checkauth> returns a user ID, a cookie, and a session ID. The cookie should be sent back to the browser; it verifies that the user has authenticated. =cut sub _version_check ($$) { my $type = shift; my $query = shift; my $version; # If Version syspref is unavailable, it means Koha is beeing installed, # and so we must redirect to OPAC maintenance page or to the WebInstaller #warn "about to check version"; unless ($version = C4::Context->preference('Version')) { # assignment, not comparison if ($type ne 'opac') { warn "Install required, redirecting to Installer"; print $query->redirect("/cgi-bin/koha/installer/install.pl"); } else { warn "OPAC Install required, redirecting to maintenance"; print $query->redirect("/cgi-bin/koha/maintenance.pl"); } exit; } # check that database and koha version are the same # there is no DB version, it's a fresh install, # go to web installer # there is a DB version, compare it to the code version my $kohaversion=C4::Context::KOHAVERSION; # remove the 3 last . to have a Perl number $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/; $debug and print STDERR "kohaversion : $kohaversion\n"; if ($version < $kohaversion){ my $warning = "Database update needed, redirecting to %s. Database is $version and Koha is $kohaversion"; if ($type ne 'opac'){ warn sprintf($warning, 'Installer'); print $query->redirect("/cgi-bin/koha/installer/install.pl?step=3"); } else { warn sprintf("OPAC: " . $warning, 'maintenance'); print $query->redirect("/cgi-bin/koha/maintenance.pl"); } exit; } } sub _session_log { (@_) or return 0; open L, ">>/tmp/sessionlog" or warn "ERROR: Cannot append to /tmp/sessionlog"; printf L join("\n",@_); close L; } sub checkauth { my $query = shift; $debug and warn "Checking Auth"; # $authnotrequired will be set for scripts which will run without authentication my $authnotrequired = shift; my $flagsrequired = shift; my $type = shift; $type = 'opac' unless $type; my $dbh = C4::Context->dbh; my $timeout = C4::Context->preference('timeout'); # days if ($timeout =~ /(\d+)[dD]/) { $timeout = $1 * 86400; }; $timeout = 600 unless $timeout; _version_check($type,$query); # state variables my $loggedin = 0; my %info; my ( $userid, $cookie, $sessionID, $flags, $shelves ); my $logout = $query->param('logout.x'); if ( $userid = $ENV{'REMOTE_USER'} ) { # Using Basic Authentication, no cookies required $cookie = $query->cookie( -name => 'CGISESSID', -value => '', -expires => '' ); $loggedin = 1; } elsif ( $sessionID = $query->cookie("CGISESSID")) { # assignment, not comparison my $session = get_session($sessionID); C4::Context->_new_userenv($sessionID); my ($ip, $lasttime); if ($session){ C4::Context::set_userenv( $session->param('number'), $session->param('id'), $session->param('cardnumber'), $session->param('firstname'), $session->param('surname'), $session->param('branch'), $session->param('branchname'), $session->param('flags'), $session->param('emailaddress'), $session->param('branchprinter') ); C4::Context::set_shelves_userenv($session->param('shelves')); $debug and printf STDERR "AUTH_SESSION: (%s)\t%s %s - %s\n", map {$session->param($_)} qw(cardnumber firstname surname branch) ; $ip = $session->param('ip'); $lasttime = $session->param('lasttime'); $userid = $session->param('id'); } if ($logout) { # voluntary logout the user $session->flush; $session->delete(); C4::Context->_unset_userenv($sessionID); _session_log(sprintf "%20s from %16s logged out at %30s (manually).\n", $userid,$ip,localtime); $sessionID = undef; $userid = undef; } elsif ( $lasttime < time() - $timeout ) { # timed logout $info{'timed_out'} = 1; $session->delete(); C4::Context->_unset_userenv($sessionID); _session_log(sprintf "%20s from %16s logged out at %30s (inactivity).\n", $userid,$ip,localtime); $userid = undef; $sessionID = undef; } elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) { # Different ip than originally logged in from $info{'oldip'} = $ip; $info{'newip'} = $ENV{'REMOTE_ADDR'}; $info{'different_ip'} = 1; $session->delete(); C4::Context->_unset_userenv($sessionID); _session_log(sprintf "%20s from %16s logged out at %30s (ip changed to %16s).\n", $userid,$ip,localtime, $info{'newip'}); $sessionID = undef; $userid = undef; } else { $cookie = $query->cookie( CGISESSID => $session->id ); $session->param('lasttime',time()); $flags = haspermission( $dbh, $userid, $flagsrequired ); if ($flags) { $loggedin = 1; } else { $info{'nopermission'} = 1; } } } unless ($userid) { my $session = get_session("") or die "Auth ERROR: Cannot get_session()"; my $sessionID = $session->id; $userid = $query->param('userid'); my $password = $query->param('password'); C4::Context->_new_userenv($sessionID); my ( $return, $cardnumber ) = checkpw( $dbh, $userid, $password ); if ($return) { _session_log(sprintf "%20s from %16s logged in at %30s.\n", $userid,$ENV{'REMOTE_ADDR'},localtime); $cookie = $query->cookie(CGISESSID => $sessionID); if ( $flags = haspermission( $dbh, $userid, $flagsrequired ) ) { $loggedin = 1; } else { $info{'nopermission'} = 1; C4::Context->_unset_userenv($sessionID); } my ($borrowernumber, $firstname, $surname, $userflags, $branchcode, $branchname, $branchprinter, $emailaddress); if ( $return == 1 ) { my $select = " 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 "; my $sth = $dbh->prepare("$select where userid=?"); $sth->execute($userid); unless ($sth->rows) { $debug and print STDERR "AUTH_1: no rows for userid='$userid'\n"; $sth = $dbh->prepare("$select where cardnumber=?"); $sth->execute($cardnumber); unless ($sth->rows) { $debug and print STDERR "AUTH_2a: no rows for cardnumber='$cardnumber'\n"; $sth->execute($userid); unless ($sth->rows) { $debug and print STDERR "AUTH_2b: no rows for userid='$userid' AS cardnumber\n"; } } } if ($sth->rows) { ($borrowernumber, $firstname, $surname, $userflags, $branchcode, $branchname, $branchprinter, $emailaddress) = $sth->fetchrow; $debug and print STDERR "AUTH_3 results: " . "$cardnumber,$borrowernumber,$userid,$firstname,$surname,$userflags,$branchcode,$emailaddress\n"; } else { print STDERR "AUTH_3: no results for userid='$userid', cardnumber='$cardnumber'.\n"; } # launch a sequence to check if we have a ip for the branch, i # if we have one we replace the branchcode of the userenv by the branch bound in the ip. my $ip = $ENV{'REMOTE_ADDR'}; # if they specify at login, use that if ($query->param('branch')) { $branchcode = $query->param('branch'); $branchname = GetBranchName($branchcode); } my $branches = GetBranches(); if (C4::Context->boolean_preference('IndependantBranches') && C4::Context->boolean_preference('Autolocation')){ # we have to check they are coming from the right ip range my $domain = $branches->{$branchcode}->{'branchip'}; if ($ip !~ /^$domain/){ $loggedin=0; $info{'wrongip'} = 1; } } my @branchesloop; foreach my $br ( keys %$branches ) { # now we work with the treatment of ip my $domain = $branches->{$br}->{'branchip'}; if ( $domain && $ip =~ /^$domain/ ) { $branchcode = $branches->{$br}->{'branchcode'}; # new op dev : add the branchprinter and branchname in the cookie $branchprinter = $branches->{$br}->{'branchprinter'}; $branchname = $branches->{$br}->{'branchname'}; } } $session->param('number',$borrowernumber); $session->param('id',$userid); $session->param('cardnumber',$cardnumber); $session->param('firstname',$firstname); $session->param('surname',$surname); $session->param('branch',$branchcode); $session->param('branchname',$branchname); $session->param('flags',$userflags); $session->param('emailaddress',$emailaddress); $session->param('ip',$session->remote_addr()); $session->param('lasttime',time()); $debug and printf STDERR "AUTH_4: (%s)\t%s %s - %s\n", map {$session->param($_)} qw(cardnumber firstname surname branch) ; } elsif ( $return == 2 ) { #We suppose the user is the superlibrarian $borrowernumber = 0; $session->param('number',0); $session->param('id',C4::Context->config('user')); $session->param('cardnumber',C4::Context->config('user')); $session->param('firstname',C4::Context->config('user')); $session->param('surname',C4::Context->config('user')); $session->param('branch','NO_LIBRARY_SET'); $session->param('branchname','NO_LIBRARY_SET'); $session->param('flags',1); $session->param('emailaddress', C4::Context->preference('KohaAdminEmailAddress')); $session->param('ip',$session->remote_addr()); $session->param('lasttime',time()); } C4::Context::set_userenv( $session->param('number'), $session->param('id'), $session->param('cardnumber'), $session->param('firstname'), $session->param('surname'), $session->param('branch'), $session->param('branchname'), $session->param('flags'), $session->param('emailaddress'), $session->param('branchprinter') ); $shelves = GetShelvesSummary($borrowernumber,2,10); $session->param('shelves', $shelves); C4::Context::set_shelves_userenv($shelves); } else { if ($userid) { $info{'invalid_username_or_password'} = 1; C4::Context->_unset_userenv($sessionID); } } } # END unless ($userid) my $insecure = C4::Context->boolean_preference('insecure'); # finished authentification, now respond if ( $loggedin || $authnotrequired || ( defined($insecure) && $insecure ) ) { # successful login unless ($cookie) { $cookie = $query->cookie( CGISESSID => '' ); } return ( $userid, $cookie, $sessionID, $flags ); } # # # AUTH rejected, show the login/password template, after checking the DB. # # # get the inputs from the incoming query my @inputs = (); foreach my $name ( param $query) { (next) if ( $name eq 'userid' || $name eq 'password' ); my $value = $query->param($name); push @inputs, { name => $name, value => $value }; } # get the branchloop, which we need for authentication my $branches = GetBranches(); my @branch_loop; for my $branch_hash (sort keys %$branches) { push @branch_loop, {branchcode => "$branch_hash", branchname => $branches->{$branch_hash}->{'branchname'}, }; } my $template_name = ( $type eq 'opac' ) ? 'opac-auth.tmpl' : 'auth.tmpl'; my $template = gettemplate( $template_name, $type, $query ); $template->param(branchloop => \@branch_loop,); $template->param( login => 1, INPUTS => \@inputs, suggestion => C4::Context->preference("suggestion"), virtualshelves => C4::Context->preference("virtualshelves"), opaclargeimage => C4::Context->preference("opaclargeimage"), LibraryName => C4::Context->preference("LibraryName"), opacuserlogin => C4::Context->preference("opacuserlogin"), OpacNav => C4::Context->preference("OpacNav"), opaccredits => C4::Context->preference("opaccredits"), opacreadinghistory => C4::Context->preference("opacreadinghistory"), opacsmallimage => C4::Context->preference("opacsmallimage"), opaclayoutstylesheet => C4::Context->preference("opaclayoutstylesheet"), opaccolorstylesheet => C4::Context->preference("opaccolorstylesheet"), opaclanguagesdisplay => C4::Context->preference("opaclanguagesdisplay"), opacuserjs => C4::Context->preference("opacuserjs"), opacbookbag => "" . C4::Context->preference("opacbookbag"), OpacCloud => C4::Context->preference("OpacCloud"), OpacTopissue => C4::Context->preference("OpacTopissue"), OpacAuthorities => C4::Context->preference("OpacAuthorities"), OpacBrowser => C4::Context->preference("OpacBrowser"), opacheader => C4::Context->preference("opacheader"), OPACUserCSS => C4::Context->preference("OPACUserCSS"), intranetcolorstylesheet => C4::Context->preference("intranetcolorstylesheet"), intranetstylesheet => C4::Context->preference("intranetstylesheet"), IntranetNav => C4::Context->preference("IntranetNav"), intranetuserjs => C4::Context->preference("intranetuserjs"), TemplateEncoding => C4::Context->preference("TemplateEncoding"), IndependantBranches=> C4::Context->preference("IndependantBranches"), AutoLocation => C4::Context->preference("AutoLocation"), yuipath => C4::Context->preference("yuipath"), wrongip => $info{'wrongip'} ); $template->param( loginprompt => 1 ) unless $info{'nopermission'}; my $self_url = $query->url( -absolute => 1 ); $template->param( url => $self_url, LibraryName => C4::Context->preference("LibraryName"), ); $template->param( \%info ); # $cookie = $query->cookie(CGISESSID => $session->id # ); print $query->header( -type => 'text/html', -charset => 'utf-8', -cookie => $cookie ), $template->output; exit; } =item check_api_auth ($status, $cookie, $sessionId) = check_api_auth($query, $userflags); Given a CGI query containing the parameters 'userid' and 'password' and/or a session cookie, determine if the user has the privileges specified by C<$userflags>. C is is meant for authenticating users of web services, and consequently will always return and will not attempt to redirect the user agent. If a valid session cookie is already present, check_api_auth will return a status of "ok", the cookie, and the Koha session ID. If no session cookie is present, check_api_auth will check the 'userid' and 'password parameters and create a session cookie and Koha session if the supplied credentials are OK. Possible return values in C<$status> are: =over 4 =item "ok" -- user authenticated; C<$cookie> and C<$sessionid> have valid values. =item "failed" -- credentials are not correct; C<$cookie> and C<$sessionid> are undef =item "maintenance" -- DB is in maintenance mode; no login possible at the moment =item "expired -- session cookie has expired; API user should resubmit userid and password =back =cut sub check_api_auth { my $query = shift; my $flagsrequired = shift; my $dbh = C4::Context->dbh; my $timeout = C4::Context->preference('timeout'); $timeout = 600 unless $timeout; unless (C4::Context->preference('Version')) { # database has not been installed yet return ("maintenance", undef, undef); } my $kohaversion=C4::Context::KOHAVERSION; $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/; if (C4::Context->preference('Version') < $kohaversion) { # database in need of version update; assume that # no API should be called while databsae is in # this condition. return ("maintenance", undef, undef); } # FIXME -- most of what follows is a copy-and-paste # of code from checkauth. There is an obvious need # for refactoring to separate the various parts of # the authentication code, but as of 2007-11-19 this # is deferred so as to not introduce bugs into the # regular authentication code for Koha 3.0. # see if we have a valid session cookie already # however, if a userid parameter is present (i.e., from # a form submission, assume that any current cookie # is to be ignored my $sessionID = undef; unless ($query->param('userid')) { $sessionID = $query->cookie("CGISESSID"); } if ($sessionID) { my $session = get_session($sessionID); C4::Context->_new_userenv($sessionID); if ($session) { C4::Context::set_userenv( $session->param('number'), $session->param('id'), $session->param('cardnumber'), $session->param('firstname'), $session->param('surname'), $session->param('branch'), $session->param('branchname'), $session->param('flags'), $session->param('emailaddress'), $session->param('branchprinter') ); my $ip = $session->param('ip'); my $lasttime = $session->param('lasttime'); my $userid = $session->param('id'); if ( $lasttime < time() - $timeout ) { # time out $session->delete(); C4::Context->_unset_userenv($sessionID); $userid = undef; $sessionID = undef; return ("expired", undef, undef); } elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) { # IP address changed $session->delete(); C4::Context->_unset_userenv($sessionID); $userid = undef; $sessionID = undef; return ("expired", undef, undef); } else { my $cookie = $query->cookie( CGISESSID => $session->id ); $session->param('lasttime',time()); my $flags = haspermission( $dbh, $userid, $flagsrequired ); if ($flags) { return ("ok", $cookie, $sessionID); } else { $session->delete(); C4::Context->_unset_userenv($sessionID); $userid = undef; $sessionID = undef; return ("failed", undef, undef); } } } else { return ("expired", undef, undef); } } else { # new login my $userid = $query->param('userid'); my $password = $query->param('password'); unless ($userid and $password) { # caller did something wrong, fail the authenticateion return ("failed", undef, undef); } my ( $return, $cardnumber ) = checkpw( $dbh, $userid, $password ); if ($return and haspermission( $dbh, $userid, $flagsrequired)) { my $session = get_session(""); return ("failed", undef, undef) unless $session; my $sessionID = $session->id; C4::Context->_new_userenv($sessionID); my $cookie = $query->cookie(CGISESSID => $sessionID); if ( $return == 1 ) { my ( $borrowernumber, $firstname, $surname, $userflags, $branchcode, $branchname, $branchprinter, $emailaddress ); my $sth = $dbh->prepare( "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=?" ); $sth->execute($userid); ( $borrowernumber, $firstname, $surname, $userflags, $branchcode, $branchname, $branchprinter, $emailaddress ) = $sth->fetchrow if ( $sth->rows ); unless ($sth->rows ) { my $sth = $dbh->prepare( "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=?" ); $sth->execute($cardnumber); ( $borrowernumber, $firstname, $surname, $userflags, $branchcode, $branchname, $branchprinter, $emailaddress ) = $sth->fetchrow if ( $sth->rows ); unless ( $sth->rows ) { $sth->execute($userid); ( $borrowernumber, $firstname, $surname, $userflags, $branchcode, $branchname, $branchprinter, $emailaddress ) = $sth->fetchrow if ( $sth->rows ); } } my $ip = $ENV{'REMOTE_ADDR'}; # if they specify at login, use that if ($query->param('branch')) { $branchcode = $query->param('branch'); $branchname = GetBranchName($branchcode); } my $branches = GetBranches(); my @branchesloop; foreach my $br ( keys %$branches ) { # now we work with the treatment of ip my $domain = $branches->{$br}->{'branchip'}; if ( $domain && $ip =~ /^$domain/ ) { $branchcode = $branches->{$br}->{'branchcode'}; # new op dev : add the branchprinter and branchname in the cookie $branchprinter = $branches->{$br}->{'branchprinter'}; $branchname = $branches->{$br}->{'branchname'}; } } $session->param('number',$borrowernumber); $session->param('id',$userid); $session->param('cardnumber',$cardnumber); $session->param('firstname',$firstname); $session->param('surname',$surname); $session->param('branch',$branchcode); $session->param('branchname',$branchname); $session->param('flags',$userflags); $session->param('emailaddress',$emailaddress); $session->param('ip',$session->remote_addr()); $session->param('lasttime',time()); } elsif ( $return == 2 ) { #We suppose the user is the superlibrarian $session->param('number',0); $session->param('id',C4::Context->config('user')); $session->param('cardnumber',C4::Context->config('user')); $session->param('firstname',C4::Context->config('user')); $session->param('surname',C4::Context->config('user')); $session->param('branch','NO_LIBRARY_SET'); $session->param('branchname','NO_LIBRARY_SET'); $session->param('flags',1); $session->param('emailaddress', C4::Context->preference('KohaAdminEmailAddress')); $session->param('ip',$session->remote_addr()); $session->param('lasttime',time()); } C4::Context::set_userenv( $session->param('number'), $session->param('id'), $session->param('cardnumber'), $session->param('firstname'), $session->param('surname'), $session->param('branch'), $session->param('branchname'), $session->param('flags'), $session->param('emailaddress'), $session->param('branchprinter') ); return ("ok", $cookie, $sessionID); } else { return ("failed", undef, undef); } } } =item check_cookie_auth ($status, $sessionId) = check_api_auth($cookie, $userflags); Given a CGISESSID cookie set during a previous login to Koha, determine if the user has the privileges specified by C<$userflags>. C is meant for authenticating special services such as tools/upload-file.pl that are invoked by other pages that have been authenticated in the usual way. Possible return values in C<$status> are: =over 4 =item "ok" -- user authenticated; C<$sessionID> have valid values. =item "failed" -- credentials are not correct; C<$sessionid> are undef =item "maintenance" -- DB is in maintenance mode; no login possible at the moment =item "expired -- session cookie has expired; API user should resubmit userid and password =back =cut sub check_cookie_auth { my $cookie = shift; my $flagsrequired = shift; my $dbh = C4::Context->dbh; my $timeout = C4::Context->preference('timeout'); $timeout = 600 unless $timeout; unless (C4::Context->preference('Version')) { # database has not been installed yet return ("maintenance", undef); } my $kohaversion=C4::Context::KOHAVERSION; $kohaversion =~ s/(.*\..*)\.(.*)\.(.*)/$1$2$3/; if (C4::Context->preference('Version') < $kohaversion) { # database in need of version update; assume that # no API should be called while databsae is in # this condition. return ("maintenance", undef); } # FIXME -- most of what follows is a copy-and-paste # of code from checkauth. There is an obvious need # for refactoring to separate the various parts of # the authentication code, but as of 2007-11-23 this # is deferred so as to not introduce bugs into the # regular authentication code for Koha 3.0. # see if we have a valid session cookie already # however, if a userid parameter is present (i.e., from # a form submission, assume that any current cookie # is to be ignored unless (defined $cookie and $cookie) { return ("failed", undef); } my $sessionID = $cookie; my $session = get_session($sessionID); C4::Context->_new_userenv($sessionID); if ($session) { C4::Context::set_userenv( $session->param('number'), $session->param('id'), $session->param('cardnumber'), $session->param('firstname'), $session->param('surname'), $session->param('branch'), $session->param('branchname'), $session->param('flags'), $session->param('emailaddress'), $session->param('branchprinter') ); my $ip = $session->param('ip'); my $lasttime = $session->param('lasttime'); my $userid = $session->param('id'); if ( $lasttime < time() - $timeout ) { # time out $session->delete(); C4::Context->_unset_userenv($sessionID); $userid = undef; $sessionID = undef; return ("expired", undef); } elsif ( $ip ne $ENV{'REMOTE_ADDR'} ) { # IP address changed $session->delete(); C4::Context->_unset_userenv($sessionID); $userid = undef; $sessionID = undef; return ("expired", undef); } else { $session->param('lasttime',time()); my $flags = haspermission( $dbh, $userid, $flagsrequired ); if ($flags) { return ("ok", $sessionID); } else { $session->delete(); C4::Context->_unset_userenv($sessionID); $userid = undef; $sessionID = undef; return ("failed", undef); } } } else { return ("expired", undef); } } =item get_session use CGI::Session; my $session = get_session($sessionID); Given a session ID, retrieve the CGI::Session object used to store the session's state. The session object can be used to store data that needs to be accessed by different scripts during a user's session. If the C<$sessionID> parameter is an empty string, a new session will be created. =cut sub get_session { my $sessionID = shift; my $storage_method = C4::Context->preference('SessionStorage'); my $dbh = C4::Context->dbh; my $session; if ($storage_method eq 'mysql'){ $session = new CGI::Session("driver:MySQL;serializer:yaml;id:md5", $sessionID, {Handle=>$dbh}); } elsif ($storage_method eq 'Pg') { $session = new CGI::Session("driver:PostgreSQL;serializer:yaml;id:md5", $sessionID, {Handle=>$dbh}); } else { # catch all defaults to tmp should work on all systems $session = new CGI::Session("driver:File;serializer:yaml;id:md5", $sessionID, {Directory=>'/tmp'}); } return $session; } sub checkpw { my ( $dbh, $userid, $password ) = @_; if ($ldap) { $debug and print "## checkpw - checking LDAP\n"; my ($retval,$retcard) = checkpw_ldap(@_); # EXTERNAL AUTH ($retval) and return ($retval,$retcard); } # INTERNAL AUTH my $sth = $dbh->prepare( "select password,cardnumber,borrowernumber,userid,firstname,surname,branchcode,flags from borrowers where userid=?" ); $sth->execute($userid); if ( $sth->rows ) { my ( $md5password, $cardnumber, $borrowernumber, $userid, $firstname, $surname, $branchcode, $flags ) = $sth->fetchrow; if ( md5_base64($password) eq $md5password ) { C4::Context->set_userenv( "$borrowernumber", $userid, $cardnumber, $firstname, $surname, $branchcode, $flags ); return 1, $cardnumber; } } $sth = $dbh->prepare( "select password,cardnumber,borrowernumber,userid, firstname,surname,branchcode,flags from borrowers where cardnumber=?" ); $sth->execute($userid); if ( $sth->rows ) { my ( $md5password, $cardnumber, $borrowernumber, $userid, $firstname, $surname, $branchcode, $flags ) = $sth->fetchrow; if ( md5_base64($password) eq $md5password ) { C4::Context->set_userenv( $borrowernumber, $userid, $cardnumber, $firstname, $surname, $branchcode, $flags ); return 1, $userid; } } if ( $userid && $userid eq C4::Context->config('user') && "$password" eq C4::Context->config('pass') ) { # Koha superuser account # C4::Context->set_userenv(0,0,C4::Context->config('user'),C4::Context->config('user'),C4::Context->config('user'),"",1); return 2; } if ( $userid && $userid eq 'demo' && "$password" eq 'demo' && C4::Context->config('demo') ) { # DEMO => the demo user is allowed to do everything (if demo set to 1 in koha.conf # some features won't be effective : modify systempref, modify MARC structure, return 2; } return 0; } =item getuserflags $authflags = getuserflags($flags,$dbh); Translates integer flags into permissions strings hash. C<$flags> is the integer userflags value ( borrowers.userflags ) C<$authflags> is a hashref of permissions =cut sub getuserflags { my $flags = shift; my $userid = shift; my $dbh = shift; my $userflags; $flags = 0 unless $flags; my $sth = $dbh->prepare("SELECT bit, flag, defaulton FROM userflags"); $sth->execute; while ( my ( $bit, $flag, $defaulton ) = $sth->fetchrow ) { if ( ( $flags & ( 2**$bit ) ) || $defaulton ) { $userflags->{$flag} = 1; } else { $userflags->{$flag} = 0; } } # get subpermissions and merge with top-level permissions my $user_subperms = get_user_subpermissions($userid); foreach my $module (keys %$user_subperms) { next if $userflags->{$module} == 1; # user already has permission for everything in this module $userflags->{$module} = $user_subperms->{$module}; } return $userflags; } =item get_user_subpermissions =over 4 my $user_perm_hashref = get_user_subpermissions($userid); =back Given the userid (note, not the borrowernumber) of a staff user, return a hashref of hashrefs of the specific subpermissions accorded to the user. An example return is { tools => { export_catalog => 1, import_patrons => 1, } } The top-level hash-key is a module or function code from userflags.flag, while the second-level key is a code from permissions. The results of this function do not give a complete picture of the functions that a staff user can access; it is also necessary to check borrowers.flags. =cut sub get_user_subpermissions { my $userid = shift; my $dbh = C4::Context->dbh; my $sth = $dbh->prepare("SELECT flag, code FROM user_permissions JOIN permissions USING (module_bit, code) JOIN userflags ON (module_bit = bit) JOIN borrowers USING (borrowernumber) WHERE userid = ?"); $sth->execute($userid); my $user_perms = {}; while (my $perm = $sth->fetchrow_hashref) { $user_perms->{$perm->{'flag'}}->{$perm->{'code'}} = 1; } return $user_perms; } =item get_all_subpermissions =over 4 my $perm_hashref = get_all_subpermissions(); =back Returns a hashref of hashrefs defining all specific permissions currently defined. The return value has the same structure as that of C, except that the innermost hash value is the description of the subpermission. =cut sub get_all_subpermissions { my $dbh = C4::Context->dbh; my $sth = $dbh->prepare("SELECT flag, code, description FROM permissions JOIN userflags ON (module_bit = bit)"); $sth->execute(); my $all_perms = {}; while (my $perm = $sth->fetchrow_hashref) { $all_perms->{$perm->{'flag'}}->{$perm->{'code'}} = $perm->{'description'}; } return $all_perms; } =item haspermission $flags = ($dbh,$member,$flagsrequired); C<$member> may be either userid or overloaded with $borrower hashref from GetMemberDetails. C<$flags> is a hashref of required flags like C<$borrower-<{authflags}> Returns member's flags or 0 if a permission is not met. =cut sub haspermission { my ( $dbh, $userid, $flagsrequired ) = @_; my ($flags,$intflags); $dbh=C4::Context->dbh unless($dbh); if(ref($userid)) { $intflags = $userid->{'flags'}; } else { my $sth = $dbh->prepare("SELECT flags FROM borrowers WHERE userid=?"); $sth->execute($userid); my ($intflags) = $sth->fetchrow; $flags = getuserflags( $intflags, $userid, $dbh ); } if ( $userid eq C4::Context->config('user') ) { # Super User Account from /etc/koha.conf $flags->{'superlibrarian'} = 1; } if ( $userid eq 'demo' && C4::Context->config('demo') ) { # Demo user that can do "anything" (demo=1 in /etc/koha.conf) $flags->{'superlibrarian'} = 1; } return $flags if $flags->{superlibrarian}; foreach my $module ( keys %$flagsrequired ) { if (C4::Context->preference('GranularPermissions')) { my $subperm = $flagsrequired->{$module}; if ($subperm eq '*') { return 0 unless ( $flags->{$module} == 1 or ref($flags->{$module}) ); } else { return 0 unless ( $flags->{$module} == 1 or ( ref($flags->{$module}) and exists $flags->{$module}->{$subperm} and $flags->{$module}->{$subperm} == 1 ) ); } } else { return 0 unless ( $flags->{$module} ); } } return $flags; #FIXME - This fcn should return the failed permission so a suitable error msg can be delivered. } sub getborrowernumber { my ($userid) = @_; my $dbh = C4::Context->dbh; for my $field ( 'userid', 'cardnumber' ) { my $sth = $dbh->prepare("select borrowernumber from borrowers where $field=?"); $sth->execute($userid); if ( $sth->rows ) { my ($bnumber) = $sth->fetchrow; return $bnumber; } } return 0; } END { } # module clean-up code here (global destructor) 1; __END__ =back =head1 SEE ALSO CGI(3) C4::Output(3) Digest::MD5(3) =cut