-# -*- tab-width: 8 -*-
-# NOTE: This file uses 8-character tabs; do not change the tab size!
-
-package C4::Auth;
+package C4::Auth_with_ldap;
# Copyright 2000-2002 Katipo Communications
#
# Suite 330, Boston, MA 02111-1307 USA
use strict;
+# use warnings; almost?
use Digest::MD5 qw(md5_base64);
-require Exporter;
+use C4::Debug;
use C4::Context;
-use C4::Output; # to get the template
-use C4::Interface::CGI::Output;
-use C4::Members;
-
-# use Net::LDAP;
-# use Net::LDAP qw(:all);
-
-use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
-
-# set the version for version checking
-$VERSION = 0.01;
-
-=head1 NAME
-
-C4::Auth - Authenticates Koha users
-
-=head1 SYNOPSIS
-
- use CGI;
- use C4::Auth;
-
- my $query = new CGI;
-
- my ($template, $borrowernumber, $cookie)
- = get_template_and_user({template_name => "opac-main.tmpl",
- query => $query,
- type => "opac",
- authnotrequired => 1,
- flagsrequired => {circulate => 1},
- });
-
- print $query->header(
- -type => 'utf-8',
- -cookie => $cookie
- ), $template->output;
-
-
-=head1 DESCRIPTION
-
- The main function of this module is to provide
- authentification. However the get_template_and_user function has
- been provided so that a users login information is passed along
- automatically. This gets loaded into the template.
-
-=head1 LDAP specific
-
- This module is specific to LDAP authentification. It requires Net::LDAP package and a working LDAP server.
- To use it :
- * move initial Auth.pm elsewhere
- * Search the string LOCAL
- * modify the code between LOCAL and /LOCAL to fit your LDAP server parameters & fields
- * rename this module to Auth.pm
- That should be enough.
-
-=head1 FUNCTIONS
-
-=over 2
-
-=cut
-
-@ISA = qw(Exporter);
-@EXPORT = qw(
- &checkauth
- &get_template_and_user
-);
-
-=item get_template_and_user
-
- my ($template, $borrowernumber, $cookie)
- = get_template_and_user({template_name => "opac-main.tmpl",
- query => $query,
- type => "opac",
- authnotrequired => 1,
- flagsrequired => {circulate => 1},
- });
-
- This call passes the C<query>, C<flagsrequired> and C<authnotrequired>
- to C<&checkauth> (in this module) to perform authentification.
- See C<&checkauth> for an explanation of these parameters.
-
- The C<template_name> 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<USER_INFO>. Also the
- C<sessionID> 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<gettemplate> 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'}
- );
-
- my $borrowernumber;
- if ($user) {
- $template->param( loggedinusername => $user );
- $template->param( sessionID => $sessionID );
-
- $borrowernumber = getborrowernumber($user);
- my ( $borr, $alternativeflags ) =
- GetMemberDetails( $borrowernumber );
- my @bordat;
- $bordat[0] = $borr;
- $template->param( USER_INFO => \@bordat, );
-
- # 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 ) {
- $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_permission => 1 );
- $template->param( CAN_user_reserveforothers => 1 );
- $template->param( CAN_user_borrow => 1 );
- $template->param( CAN_user_editcatalogue => 1 );
- $template->param( CAN_user_updatecharge => 1 );
- $template->param( CAN_user_editauthorities => 1 );
- $template->param( CAN_user_acquisition => 1 );
- $template->param( CAN_user_management => 1 );
- $template->param( CAN_user_tools => 1 );
- $template->param( CAN_user_serials => 1 );
- $template->param( CAN_user_reports => 1 );
- }
- if ( $flags && $flags->{circulate} == 1 ) {
- $template->param( CAN_user_circulate => 1 );
- }
-
- if ( $flags && $flags->{catalogue} == 1 ) {
- $template->param( CAN_user_catalogue => 1 );
- }
-
- if ( $flags && $flags->{parameters} == 1 ) {
- $template->param( CAN_user_parameters => 1 );
- $template->param( CAN_user_management => 1 );
- $template->param( CAN_user_tools => 1 );
- }
-
- if ( $flags && $flags->{borrowers} == 1 ) {
- $template->param( CAN_user_borrowers => 1 );
- }
-
- if ( $flags && $flags->{permissions} == 1 ) {
- $template->param( CAN_user_permission => 1 );
- }
-
- if ( $flags && $flags->{reserveforothers} == 1 ) {
- $template->param( CAN_user_reserveforothers => 1 );
- }
-
- if ( $flags && $flags->{borrow} == 1 ) {
- $template->param( CAN_user_borrow => 1 );
- }
-
- if ( $flags && $flags->{editcatalogue} == 1 ) {
- $template->param( CAN_user_editcatalogue => 1 );
- }
-
- if ( $flags && $flags->{updatecharges} == 1 ) {
- $template->param( CAN_user_updatecharge => 1 );
- }
-
- if ( $flags && $flags->{acquisition} == 1 ) {
- $template->param( CAN_user_acquisition => 1 );
- }
-
- if ( $flags && $flags->{management} == 1 ) {
- $template->param( CAN_user_management => 1 );
- $template->param( CAN_user_tools => 1 );
- }
-
- if ( $flags && $flags->{tools} == 1 ) {
- $template->param( CAN_user_tools => 1 );
- }
- if ( $flags && $flags->{editauthorities} == 1 ) {
- $template->param( CAN_user_editauthorities => 1 );
- }
-
- if ( $flags && $flags->{serials} == 1 ) {
- $template->param( CAN_user_serials => 1 );
- }
-
- if ( $flags && $flags->{reports} == 1 ) {
- $template->param( CAN_user_reports => 1 );
- }
- }
- $template->param( LibraryName => C4::Context->preference("LibraryName"), );
- return ( $template, $borrowernumber, $cookie );
+use C4::Members qw(AddMember changepassword);
+use C4::Utils qw( :all );
+use Net::LDAP;
+use Net::LDAP::Filter;
+
+use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS $debug);
+
+BEGIN {
+ require Exporter;
+ $VERSION = 3.10; # set the version for version checking
+ @ISA = qw(Exporter);
+ @EXPORT = qw( checkpw_ldap );
}
-=item checkauth
-
- ($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.
-
-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 checkauth {
- my $query = shift;
-
-# $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');
- $timeout = 600 unless $timeout;
+# Redefine checkpw_ldap:
+# connect to LDAP (named or anonymous)
+# ~ retrieves $userid from KOHA_CONF mapping
+# ~ then compares $password with userPassword
+# ~ then gets the LDAP entry
+# ~ and calls the memberadd if necessary
- my $template_name;
- if ( $type eq 'opac' ) {
- $template_name = "opac-auth.tmpl";
- }
- else {
- $template_name = "auth.tmpl";
- }
-
- # state variables
- my $loggedin = 0;
- my %info;
- my ( $userid, $cookie, $sessionID, $flags, $envcookie );
- my $logout = $query->param('logout.x');
- if ( $userid = $ENV{'REMOTE_USER'} ) {
-
- # Using Basic Authentication, no cookies required
- $cookie = $query->cookie(
- -name => 'sessionID',
- -value => '',
- -expires => ''
- );
- $loggedin = 1;
- }
- elsif ( $sessionID = $query->cookie('sessionID') ) {
- C4::Context->_new_userenv($sessionID);
- if ( my %hash = $query->cookie('userenv') ) {
- C4::Context::set_userenv(
- $hash{number}, $hash{id}, $hash{cardnumber},
- $hash{firstname}, $hash{surname}, $hash{branch},
- $hash{flags}, $hash{emailaddress},
- );
- }
- my ( $ip, $lasttime );
- ( $userid, $ip, $lasttime ) =
- $dbh->selectrow_array(
- "SELECT userid,ip,lasttime FROM sessions WHERE sessionid=?",
- undef, $sessionID );
- if ($logout) {
-
- # voluntary logout the user
- $dbh->do( "DELETE FROM sessions WHERE sessionID=?",
- undef, $sessionID );
- C4::Context->_unset_userenv($sessionID);
- $sessionID = undef;
- $userid = undef;
- open L, ">>/tmp/sessionlog";
- my $time = localtime( time() );
- printf L "%20s from %16s logged out at %30s (manually).\n", $userid,
- $ip, $time;
- close L;
- }
- if ($userid) {
- if ( $lasttime < time() - $timeout ) {
-
- # timed logout
- $info{'timed_out'} = 1;
- $dbh->do( "DELETE FROM sessions WHERE sessionID=?",
- undef, $sessionID );
- C4::Context->_unset_userenv($sessionID);
- $userid = undef;
- $sessionID = undef;
- open L, ">>/tmp/sessionlog";
- my $time = localtime( time() );
- printf L "%20s from %16s logged out at %30s (inactivity).\n",
- $userid, $ip, $time;
- close L;
- }
- 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;
- $dbh->do( "DELETE FROM sessions WHERE sessionID=?",
- undef, $sessionID );
- C4::Context->_unset_userenv($sessionID);
- $sessionID = undef;
- $userid = undef;
- open L, ">>/tmp/sessionlog";
- my $time = localtime( time() );
- printf L
-"%20s from logged out at %30s (ip changed from %16s to %16s).\n",
- $userid, $time, $ip, $info{'newip'};
- close L;
- }
- else {
- $cookie = $query->cookie(
- -name => 'sessionID',
- -value => $sessionID,
- -expires => ''
- );
- $dbh->do( "UPDATE sessions SET lasttime=? WHERE sessionID=?",
- undef, ( time(), $sessionID ) );
- $flags = haspermission( $dbh, $userid, $flagsrequired );
- if ($flags) {
- $loggedin = 1;
- }
- else {
- $info{'nopermission'} = 1;
- }
- }
- }
- }
- unless ($userid) {
- $sessionID = int( rand() * 100000 ) . '-' . time();
- $userid = $query->param('userid');
- my $password = $query->param('password');
- C4::Context->_new_userenv($sessionID);
- my ( $return, $cardnumber ) = checkpw( $dbh, $userid, $password );
- if ($return) {
- $dbh->do( "DELETE FROM sessions WHERE sessionID=? AND userid=?",
- undef, ( $sessionID, $userid ) );
- $dbh->do(
-"INSERT INTO sessions (sessionID, userid, ip,lasttime) VALUES (?, ?, ?, ?)",
- undef,
- ( $sessionID, $userid, $ENV{'REMOTE_ADDR'}, time() )
- );
- open L, ">>/tmp/sessionlog";
- my $time = localtime( time() );
- printf L "%20s from %16s logged in at %30s.\n", $userid,
- $ENV{'REMOTE_ADDR'}, $time;
- close L;
- $cookie = $query->cookie(
- -name => 'sessionID',
- -value => $sessionID,
- -expires => ''
- );
- if ( $flags = haspermission( $dbh, $userid, $flagsrequired ) ) {
- $loggedin = 1;
- }
- else {
- $info{'nopermission'} = 1;
- C4::Context->_unset_userenv($sessionID);
- }
- if ( $return == 1 ) {
- my ( $borrowernumber, $firstname, $surname, $userflags,
- $branchcode, $emailaddress );
- my $sth =
- $dbh->prepare(
-"select borrowernumber,firstname,surname,flags,branchcode,emailaddress from borrowers where userid=?"
- );
- $sth->execute($userid);
- (
- $borrowernumber, $firstname, $surname, $userflags,
- $branchcode, $emailaddress
- )
- = $sth->fetchrow
- if ( $sth->rows );
- unless ( $sth->rows ) {
- my $sth =
- $dbh->prepare(
-"select borrowernumber,firstname,surname,flags,branchcode,emailaddress from borrowers where cardnumber=?"
- );
- $sth->execute($cardnumber);
- (
- $borrowernumber, $firstname, $surname, $userflags,
- $branchcode, $emailaddress
- )
- = $sth->fetchrow
- if ( $sth->rows );
- unless ( $sth->rows ) {
- $sth->execute($userid);
- (
- $borrowernumber, $firstname, $surname, $userflags,
- $branchcode, $emailaddress
- )
- = $sth->fetchrow
- if ( $sth->rows );
- }
- }
- my $hash =
- C4::Context::set_userenv( $borrowernumber, $userid,
- $cardnumber, $firstname, $surname, $branchcode, $userflags,
- $emailaddress, );
- $envcookie = $query->cookie(
- -name => 'userenv',
- -value => $hash,
- -expires => ''
- );
- }
- elsif ( $return == 2 ) {
-
- #We suppose the user is the superlibrarian
- my $hash = C4::Context::set_userenv(
- 0,
- 0,
- C4::Context->config('user'),
- C4::Context->config('user'),
- C4::Context->config('user'),
- "",
- 1,
- C4::Context->preference('KohaAdminEmailAddress')
- );
- $envcookie = $query->cookie(
- -name => 'userenv',
- -value => $hash,
- -expires => ''
- );
- }
- }
- else {
- if ($userid) {
- $info{'invalid_username_or_password'} = 1;
- C4::Context->_unset_userenv($sessionID);
- }
- }
- }
- my $insecure = C4::Context->boolean_preference('insecure');
-
- # finished authentification, now respond
- if ( $loggedin || $authnotrequired || ( defined($insecure) && $insecure ) )
- {
-
- # successful login
- unless ($cookie) {
- $cookie = $query->cookie(
- -name => 'sessionID',
- -value => '',
- -expires => ''
- );
- }
- if ($envcookie) {
- return ( $userid, [ $cookie, $envcookie ], $sessionID, $flags );
- }
- else {
- return ( $userid, $cookie, $sessionID, $flags );
- }
- }
+sub ldapserver_error ($) {
+ return sprintf('No ldapserver "%s" defined in KOHA_CONF: ' . $ENV{KOHA_CONF}, shift);
+}
- # else we have a problem...
- # 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 => $value };
- }
+use vars qw($mapping @ldaphosts $base $ldapname $ldappassword);
+my $context = C4::Context->new() or die 'C4::Context->new failed';
+my $ldap = C4::Context->config("ldapserver") or die 'No "ldapserver" in server hash from KOHA_CONF: ' . $ENV{KOHA_CONF};
+my $prefhost = $ldap->{hostname} or die ldapserver_error('hostname');
+my $base = $ldap->{base} or die ldapserver_error('base');
+$ldapname = $ldap->{user} ;
+$ldappassword = $ldap->{pass} ;
+our %mapping = ($ldap->{mapping}?%{$ldap->{mapping}}:()); # or die ldapserver_error('mapping');
+my @mapkeys = keys %mapping;
+$debug and print STDERR "Got ", scalar(@mapkeys), " ldap mapkeys ( total ): ", join ' ', @mapkeys, "\n";
+@mapkeys = grep {defined $mapping{$_}->{is}} @mapkeys;
+$debug and print STDERR "Got ", scalar(@mapkeys), " ldap mapkeys (populated): ", join ' ', @mapkeys, "\n";
+
+my %config = (
+ anonymous => ($ldapname and $ldappassword) ? 0 : 1,
+ replicate => defined($ldap->{replicate}) ? $ldap->{replicate} : 1, # add from LDAP to Koha database for new user
+ update => defined($ldap->{update} ) ? $ldap->{update} : 1, # update from LDAP to Koha database for existing user
+);
- my $template = gettemplate( $template_name, $type, $query );
- $template->param( INPUTS => \@inputs );
- $template->param( loginprompt => 1 ) unless $info{'nopermission'};
-
- my $self_url = $query->url( -absolute => 1 );
- $template->param( url => $self_url );
- $template->param( \%info );
- $cookie = $query->cookie(
- -name => 'sessionID',
- -value => $sessionID,
- -expires => ''
- );
- print $query->header(
- -type => 'utf-8',
- -cookie => $cookie
- ),
- $template->output;
- exit;
+sub description ($) {
+ my $result = shift or return undef;
+ return "LDAP error #" . $result->code
+ . ": " . $result->error_name . "\n"
+ . "# " . $result->error_text . "\n";
}
-# this checkpw is a LDAP based one
-# it connects to LDAP (anonymous)
-# it retrieve $userid a-login
-# then compare $password with a-weak
-# then get the LDAP entry
-# and calls the memberadd if necessary
-
-sub checkpw {
- my ( $dbh, $userid, $password ) = @_;
- if ( $userid eq C4::Context->config('user')
- && $password eq C4::Context->config('pass') )
- {
-
- # Koha superuser account
- return 2;
- }
- ##################################################
- ### LOCAL
- ### Change the code below to match your own LDAP server.
- ##################################################
- # LDAP connexion parameters
- my $ldapserver = 'your.ldap.server.com';
-
- # Infos to do an anonymous bind
- my $ldapinfos = 'a-section=people,dc=emn,dc=fr ';
- my $name = "a-section=people,dc=emn,dc=fr";
- my $db = Net::LDAP->new($ldapserver);
-
- # do an anonymous bind
- my $res = $db->bind();
- if ( $res->code ) {
-
- # auth refused
- warn "LDAP Auth impossible : server not responding";
+sub search_method {
+ my $db = shift or return;
+ my $userid = shift or return;
+ my $uid_field = $mapping{userid}->{is} or die ldapserver_error("mapping for 'userid'");
+ my $filter = Net::LDAP::Filter->new("$uid_field=$userid") or die "Failed to create new Net::LDAP::Filter";
+ my $res = ($config{anonymous}) ? $db->bind : $db->bind($ldapname, password=>$ldappassword);
+ if ($res->code) { # connection refused
+ warn "LDAP bind failed as ldapuser " . ($ldapname || '[ANONYMOUS]') . ": " . description($res);
return 0;
}
- else {
- my $userdnsearch = $db->search(
- base => $name,
- filter => "(a-login=$userid)",
- );
- if ( $userdnsearch->code || !( $userdnsearch->count eq 1 ) ) {
- warn "LDAP Auth impossible : user unknown in LDAP";
- return 0;
- }
+ my $search = $db->search(
+ base => $base,
+ filter => $filter,
+ # attrs => ['*'],
+ ) or die "LDAP search failed to return object.";
+ my $count = $search->count;
+ if ($search->code > 0) {
+ warn sprintf("LDAP Auth rejected : %s gets %d hits\n", $filter->as_string, $count) . description($search);
+ return 0;
+ }
+ if ($count != 1) {
+ warn sprintf("LDAP Auth rejected : %s gets %d hits\n", $filter->as_string, $count);
+ return 0;
+ }
+ return $search;
+}
- my $userldapentry = $userdnsearch->shift_entry;
- my $cmpmesg =
- $db->compare( $userldapentry, attr => 'a-weak', value => $password );
- ## HACK LMK
- ## ligne originale
- # if( $cmpmesg -> code != 6 ) {
- if ( ( $cmpmesg->code != 6 ) && !( $password eq "kivabien" ) ) {
- warn "LDAP Auth impossible : wrong password";
+sub checkpw_ldap {
+ my ($dbh, $userid, $password) = @_;
+ my @hosts = split(',', $prefhost);
+ my $db = Net::LDAP->new(\@hosts);
+ #$debug and $db->debug(5);
+ my $userldapentry;
+ my $search = search_method($db, $userid) or return 0; # warnings are in the sub
+ $userldapentry = $search->shift_entry;
+ if ( $ldap->{auth_by_bind} ) {
+ my $userldapname;
+ if ($ldap->{principal_name} and $ldap->{principal_name} =~ /\%/) {
+ $userldapname = sprintf($ldap->{principal_name},$userid);
+ }
+ else {
+ $userldapname=$userldapentry->dn();
+ }
+ my $userdb = Net::LDAP->new(\@hosts);
+ my $res = $userdb->bind( $userldapname, password => $password );
+ if ( $res->code ) {
+ $debug and warn "LDAP bind failed as kohauser $userldapname: ". description($res);
return 0;
}
+ } else {
+ my $cmpmesg = $db->compare( $userldapentry, attr=>'userpassword', value => $password );
+ if ($cmpmesg->code != 6) {
+ warn "LDAP Auth rejected : invalid password for user '$userid'. " . description($cmpmesg);
+ return 0;
+ }
+ }
- # build LDAP hash
- my %memberhash;
- my $x = $userldapentry->{asn}{attributes};
- my $key;
- foreach my $k (@$x) {
- foreach my $k2 ( keys %$k ) {
- if ( $k2 eq 'type' ) {
- $key = $$k{$k2};
- }
- else {
- my $a = @$k{$k2};
- foreach my $k3 (@$a) {
- $memberhash{$key} .= $k3 . " ";
- }
- }
- }
- }
+ # To get here, LDAP has accepted our user's login attempt.
+ # But we still have work to do. See perldoc below for detailed breakdown.
- #
- # BUILD %borrower to CREATE or MODIFY BORROWER
- # change $memberhash{'xxx'} to fit your ldap structure.
- # check twice that mandatory fields are correctly filled
- #
- my %borrower;
- $borrower{cardnumber} = $userid;
- $borrower{firstname} = $memberhash{givenName}; # MANDATORY FIELD
- $borrower{surname} = $memberhash{sn}; # MANDATORY FIELD
- $borrower{initials} =
- substr( $borrower{firstname}, 0, 1 )
- . substr( $borrower{surname}, 0, 1 )
- . " "; # MANDATORY FIELD
- $borrower{streetaddress} = $memberhash{l} . " "; # MANDATORY FIELD
- $borrower{city} = " "; # MANDATORY FIELD
- $borrower{phone} = " "; # MANDATORY FIELD
- $borrower{branchcode} = $memberhash{branch}; # MANDATORY FIELD
- $borrower{emailaddress} = $memberhash{mail};
- $borrower{categorycode} = $memberhash{employeeType};
- ##################################################
- ### /LOCAL
- ### No change needed after this line (unless there's a bug ;-) )
- ##################################################
- # check if borrower exists
- my $sth =
- $dbh->prepare("select password from borrowers where cardnumber=?");
- $sth->execute($userid);
- if ( $sth->rows ) {
-
- # it exists, MODIFY
- # warn "MODIF borrower";
- my $sth2 =
- $dbh->prepare(
-"update borrowers set firstname=?,surname=?,initials=?,streetaddress=?,city=?,phone=?, categorycode=?,branchcode=?,emailaddress=?,sort1=? where cardnumber=?"
- );
- $sth2->execute(
- $borrower{firstname}, $borrower{surname},
- $borrower{initials}, $borrower{streetaddress},
- $borrower{city}, $borrower{phone},
- $borrower{categorycode}, $borrower{branchcode},
- $borrower{emailaddress}, $borrower{sort1},
- $userid
- );
- }
- else {
-
- # it does not exists, ADD borrower
- # warn "ADD borrower";
- my $borrowerid = newmember(%borrower);
- }
+ my (%borrower);
+ my ($borrowernumber,$cardnumber,$local_userid,$savedpw) = exists_local($userid);
- #
- # CREATE or MODIFY PASSWORD/LOGIN
- #
- # search borrowerid
- $sth =
- $dbh->prepare(
- "select borrowernumber from borrowers where cardnumber=?");
- $sth->execute($userid);
- my ($borrowerid) = $sth->fetchrow;
-
- # warn "change password for $borrowerid setting $password";
- my $digest = md5_base64($password);
- changepassword( $userid, $borrowerid, $digest );
+ if (( $borrowernumber and $config{update} ) or
+ (!$borrowernumber and $config{replicate}) ) {
+ %borrower = ldap_entry_2_hash($userldapentry,$userid);
+ $debug and print STDERR "checkpw_ldap received \%borrower w/ " . keys(%borrower), " keys: ", join(' ', keys %borrower), "\n";
}
- # INTERNAL AUTH
- my $sth =
- $dbh->prepare("select password,cardnumber from borrowers where userid=?");
- $sth->execute($userid);
- if ( $sth->rows ) {
- my ( $md5password, $cardnumber ) = $sth->fetchrow;
- if ( md5_base64($password) eq $md5password ) {
- return 1, $cardnumber;
- }
+ if ($borrowernumber) {
+ if ($config{update}) { # A1, B1
+ my $c2 = &update_local($local_userid,$password,$borrowernumber,\%borrower) || '';
+ ($cardnumber eq $c2) or warn "update_local returned cardnumber '$c2' instead of '$cardnumber'";
+ } else { # C1, D1
+ # maybe update just the password?
+ }
+ } elsif ($config{replicate}) { # A2, C2
+ $borrowernumber = AddMember(%borrower) or die "AddMember failed";
+ } else {
+ return 0; # B2, D2
}
- $sth = $dbh->prepare("select password from borrowers where cardnumber=?");
- $sth->execute($userid);
- if ( $sth->rows ) {
- my ($md5password) = $sth->fetchrow;
- if ( md5_base64($password) eq $md5password ) {
- return 1, $userid;
- }
- }
- return 0;
+ return(1, $cardnumber);
}
-sub getuserflags {
- my $cardnumber = shift;
- my $dbh = shift;
- my $userflags;
- my $sth = $dbh->prepare("SELECT flags FROM borrowers WHERE cardnumber=?");
- $sth->execute($cardnumber);
- my ($flags) = $sth->fetchrow;
- $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;
- }
- }
- return $userflags;
+# Pass LDAP entry object and local cardnumber (userid).
+# Returns borrower hash.
+# Edit KOHA_CONF so $memberhash{'xxx'} fits your ldap structure.
+# Ensure that mandatory fields are correctly filled!
+#
+sub ldap_entry_2_hash ($$) {
+ my $userldapentry = shift;
+ my %borrower = ( cardnumber => shift );
+ my %memberhash;
+ $userldapentry->exists('uid'); # This is bad, but required! By side-effect, this initializes the attrs hash.
+ if ($debug) {
+ print STDERR "\nkeys(\%\$userldapentry) = " . join(', ', keys %$userldapentry), "\n", $userldapentry->dump();
+ foreach (keys %$userldapentry) {
+ print STDERR "\n\nLDAP key: $_\t", sprintf('(%s)', ref $userldapentry->{$_}), "\n";
+ hashdump("LDAP key: ",$userldapentry->{$_});
+ }
+ }
+ my $x = $userldapentry->{attrs} or return undef;
+ foreach (keys %$x) {
+ $memberhash{$_} = join ' ', @{$x->{$_}};
+ $debug and print STDERR sprintf("building \$memberhash{%s} = ", $_, join(' ', @{$x->{$_}})), "\n";
+ }
+ $debug and print STDERR "Finsihed \%memberhash has ", scalar(keys %memberhash), " keys\n",
+ "Referencing \%mapping with ", scalar(keys %mapping), " keys\n";
+ foreach my $key (keys %mapping) {
+ my $data = $memberhash{$mapping{$key}->{is}};
+ $debug and printf STDERR "mapping %20s ==> %-20s (%s)\n", $key, $mapping{$key}->{is}, $data;
+ unless (defined $data) {
+ $data = $mapping{$key}->{content} || ''; # default or failsafe ''
+ }
+ $borrower{$key} = ($data ne '') ? $data : ' ' ;
+ }
+ $borrower{initials} = $memberhash{initials} ||
+ ( substr($borrower{'firstname'},0,1)
+ . substr($borrower{ 'surname' },0,1)
+ . " ");
+ return %borrower;
}
-sub haspermission {
- my ( $dbh, $userid, $flagsrequired ) = @_;
- my $sth = $dbh->prepare("SELECT cardnumber FROM borrowers WHERE userid=?");
- $sth->execute($userid);
- my ($cardnumber) = $sth->fetchrow;
- ($cardnumber) || ( $cardnumber = $userid );
- my $flags = getuserflags( $cardnumber, $dbh );
- my $configfile;
- if ( $userid eq C4::Context->config('user') ) {
-
- # Super User Account from /etc/koha.conf
- $flags->{'superlibrarian'} = 1;
- }
- if ( $userid eq 'demo' && C4::Context->config('demo') ) {
+sub exists_local($) {
+ my $arg = shift;
+ my $dbh = C4::Context->dbh;
+ my $select = "SELECT borrowernumber,cardnumber,userid,password FROM borrowers ";
+
+ my $sth = $dbh->prepare("$select WHERE userid=?"); # was cardnumber=?
+ $sth->execute($arg);
+ $debug and printf STDERR "Userid '$arg' exists_local? %s\n", $sth->rows;
+ ($sth->rows == 1) and return $sth->fetchrow;
+
+ $sth = $dbh->prepare("$select WHERE cardnumber=?");
+ $sth->execute($arg);
+ $debug and printf STDERR "Cardnumber '$arg' exists_local? %s\n", $sth->rows;
+ ($sth->rows == 1) and return $sth->fetchrow;
+ return 0;
+}
- # Demo user that can do "anything" (demo=1 in /etc/koha.conf)
- $flags->{'superlibrarian'} = 1;
- }
- return $flags if $flags->{superlibrarian};
- foreach ( keys %$flagsrequired ) {
- return $flags if $flags->{$_};
- }
- return 0;
+sub _do_changepassword {
+ my ($userid, $borrowerid, $digest) = @_;
+ $debug and print STDERR "changing local password for borrowernumber=$borrowerid to '$digest'\n";
+ changepassword($userid, $borrowerid, $digest);
+
+ # Confirm changes
+ my $sth = C4::Context->dbh->prepare("SELECT password,cardnumber FROM borrowers WHERE borrowernumber=? ");
+ $sth->execute($borrowerid);
+ if ($sth->rows) {
+ my ($md5password, $cardnum) = $sth->fetchrow;
+ ($digest eq $md5password) and return $cardnum;
+ warn "Password mismatch after update to cardnumber=$cardnum (borrowernumber=$borrowerid)";
+ return undef;
+ }
+ die "Unexpected error after password update to userid/borrowernumber: $userid / $borrowerid.";
}
-sub getborrowernumber {
- my ($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;
+sub update_local($$$$) {
+ my $userid = shift or return undef;
+ my $digest = md5_base64(shift) or return undef;
+ my $borrowerid = shift or return undef;
+ my $borrower = shift or return undef;
+ my @keys = keys %$borrower;
+ my $dbh = C4::Context->dbh;
+ my $query = "UPDATE borrowers\nSET " .
+ join(',', map {"$_=?"} @keys) .
+ "\nWHERE borrowernumber=? ";
+ my $sth = $dbh->prepare($query);
+ if ($debug) {
+ print STDERR $query, "\n",
+ join "\n", map {"$_ = '" . $borrower->{$_} . "'"} @keys;
+ print STDERR "\nuserid = $userid\n";
+ }
+ $sth->execute(
+ ((map {$borrower->{$_}} @keys), $borrowerid)
+ );
+
+ # MODIFY PASSWORD/LOGIN
+ _do_changepassword($userid, $borrowerid, $digest);
}
-END { } # module clean-up code here (global destructor)
1;
__END__
-=back
+=head1 NAME
+
+C4::Auth - Authenticates Koha users
+
+=head1 SYNOPSIS
+
+ use C4::Auth_with_ldap;
+
+=head1 LDAP Configuration
+
+ This module is specific to LDAP authentification. It requires Net::LDAP package and one or more
+ working LDAP servers.
+ To use it :
+ * Modify ldapserver element in KOHA_CONF
+ * Establish field mapping in <mapping> element.
+
+ For example, if your user records are stored according to the inetOrgPerson schema, RFC#2798,
+ the username would match the "uid" field, and the password should match the "userpassword" field.
+
+ Make sure that ALL required fields are populated by your LDAP database (and mapped in KOHA_CONF).
+ What are the required fields? Well, in mysql you can check the database table "borrowers" like this:
+
+ mysql> show COLUMNS from borrowers;
+ +------------------+--------------+------+-----+---------+----------------+
+ | Field | Type | Null | Key | Default | Extra |
+ +------------------+--------------+------+-----+---------+----------------+
+ | borrowernumber | int(11) | NO | PRI | NULL | auto_increment |
+ | cardnumber | varchar(16) | YES | UNI | NULL | |
+ | surname | mediumtext | NO | | | |
+ | firstname | text | YES | | NULL | |
+ | title | mediumtext | YES | | NULL | |
+ | othernames | mediumtext | YES | | NULL | |
+ | initials | text | YES | | NULL | |
+ | streetnumber | varchar(10) | YES | | NULL | |
+ | streettype | varchar(50) | YES | | NULL | |
+ | address | mediumtext | NO | | | |
+ | address2 | text | YES | | NULL | |
+ | city | mediumtext | NO | | | |
+ | zipcode | varchar(25) | YES | | NULL | |
+ | email | mediumtext | YES | | NULL | |
+ | phone | text | YES | | NULL | |
+ | mobile | varchar(50) | YES | | NULL | |
+ | fax | mediumtext | YES | | NULL | |
+ | emailpro | text | YES | | NULL | |
+ | phonepro | text | YES | | NULL | |
+ | B_streetnumber | varchar(10) | YES | | NULL | |
+ | B_streettype | varchar(50) | YES | | NULL | |
+ | B_address | varchar(100) | YES | | NULL | |
+ | B_city | mediumtext | YES | | NULL | |
+ | B_zipcode | varchar(25) | YES | | NULL | |
+ | B_email | text | YES | | NULL | |
+ | B_phone | mediumtext | YES | | NULL | |
+ | dateofbirth | date | YES | | NULL | |
+ | branchcode | varchar(10) | NO | MUL | | |
+ | categorycode | varchar(10) | NO | MUL | | |
+ | dateenrolled | date | YES | | NULL | |
+ | dateexpiry | date | YES | | NULL | |
+ | gonenoaddress | tinyint(1) | YES | | NULL | |
+ | lost | tinyint(1) | YES | | NULL | |
+ | debarred | tinyint(1) | YES | | NULL | |
+ | contactname | mediumtext | YES | | NULL | |
+ | contactfirstname | text | YES | | NULL | |
+ | contacttitle | text | YES | | NULL | |
+ | guarantorid | int(11) | YES | | NULL | |
+ | borrowernotes | mediumtext | YES | | NULL | |
+ | relationship | varchar(100) | YES | | NULL | |
+ | ethnicity | varchar(50) | YES | | NULL | |
+ | ethnotes | varchar(255) | YES | | NULL | |
+ | sex | varchar(1) | YES | | NULL | |
+ | password | varchar(30) | YES | | NULL | |
+ | flags | int(11) | YES | | NULL | |
+ | userid | varchar(30) | YES | MUL | NULL | | # UNIQUE in next release.
+ | opacnote | mediumtext | YES | | NULL | |
+ | contactnote | varchar(255) | YES | | NULL | |
+ | sort1 | varchar(80) | YES | | NULL | |
+ | sort2 | varchar(80) | YES | | NULL | |
+ +------------------+--------------+------+-----+---------+----------------+
+ 50 rows in set (0.01 sec)
+
+ Where Null="NO", the field is required.
+
+=head1 KOHA_CONF and field mapping
+
+Example XML stanza for LDAP configuration in KOHA_CONF.
+
+ <config>
+ ...
+ <useldapserver>1</useldapserver>
+ <!-- LDAP SERVER (optional) -->
+ <ldapserver id="ldapserver">
+ <hostname>localhost</hostname>
+ <base>dc=metavore,dc=com</base>
+ <user>cn=Manager,dc=metavore,dc=com</user> <!-- DN, if not anonymous -->
+ <pass>metavore</pass> <!-- password, if not anonymous -->
+ <replicate>1</replicate> <!-- add new users from LDAP to Koha database -->
+ <update>1</update> <!-- update existing users in Koha database -->
+ <auth_by_bind>0</auth_by_bind> <!-- set to 1 to authenticate by binding instead of
+ password comparison, e.g., to use Active Directory -->
+ <principal_name>%s@my_domain.com</principal_name>
+ <!-- optional, for auth_by_bind: a printf format to make userPrincipalName from koha userid -->
+ <mapping> <!-- match koha SQL field names to your LDAP record field names -->
+ <firstname is="givenname" ></firstname>
+ <surname is="sn" ></surname>
+ <address is="postaladdress" ></address>
+ <city is="l" >Athens, OH</city>
+ <zipcode is="postalcode" ></zipcode>
+ <branchcode is="branch" >MAIN</branchcode>
+ <userid is="uid" ></userid>
+ <password is="userpassword" ></password>
+ <email is="mail" ></email>
+ <categorycode is="employeetype" >PT</categorycode>
+ <phone is="telephonenumber"></phone>
+ </mapping>
+ </ldapserver>
+ </config>
+
+The <mapping> subelements establish the relationship between mysql fields and LDAP attributes. The element name
+is the column in mysql, with the "is" characteristic set to the LDAP attribute name. Optionally, any content
+between the element tags is taken as the default value. In this example, the default categorycode is "PT" (for
+patron).
+
+=head1 CONFIGURATION
+
+Once a user has been accepted by the LDAP server, there are several possibilities for how Koha will behave, depending on
+your configuration and the presence of a matching Koha user in your local DB:
+
+ LOCAL_USER
+ OPTION UPDATE REPLICATE EXISTS? RESULT
+ A1 1 1 1 OK : We're updating them anyway.
+ A2 1 1 0 OK : We're adding them anyway.
+ B1 1 0 1 OK : We update them.
+ B2 1 0 0 FAIL: We cannot add new user.
+ C1 0 1 1 OK : We do nothing. (maybe should update password?)
+ C2 0 1 0 OK : We add the new user.
+ D1 0 0 1 OK : We do nothing. (maybe should update password?)
+ D2 0 0 0 FAIL: We cannot add new user.
+
+Note: failure here just means that Koha will fallback to checking the local DB. That is, a given user could login with
+their LDAP password OR their local one. If this is a problem, then you should enable update and supply a mapping for
+password. Then the local value will be updated at successful LDAP login and the passwords will be synced.
+
+If you choose NOT to update local users, the borrowers table will not be affected at all.
+Note that this means that patron passwords may appear to change if LDAP is ever disabled, because
+the local table never contained the LDAP values.
+
+=head2 auth_by_bind
+
+Binds as the user instead of retrieving their record. Recommended if update disabled.
+
+=head2 principal_name
+
+Provides an optional sprintf-style format for manipulating the userid before the bind.
+Even though the userPrincipalName is one intended target, any uniquely identifying
+attribute that the server allows to be used for binding could be used.
+
+Currently, principal_name only operates when auth_by_bind is enabled.
+
+=head2 Active Directory
+
+The auth_by_bind and principal_name settings are recommended for Active Directory.
+
+Under default Active Directory rules, we cannot determine the distinguishedName attribute from the Koha userid as reliably as
+we would typically under openldap. Instead of:
+
+ distinguishedName: CN=barnes.7,DC=my_company,DC=com
+
+We might get:
+
+ distinguishedName: CN=Barnes\, Jim,OU=Test Accounts,OU=User Accounts,DC=my_company,DC=com
+
+Matching that would require us to know more info about the account (firstname, surname) and to include punctuation and whitespace
+in Koha userids. But the userPrincipalName should be consistent, something like:
+
+ userPrincipalName: barnes.7@my_company.com
+
+Therefore it is often easier to bind to Active Directory with userPrincipalName, effectively the
+canonical email address for that user, or what it would be if email were enabled for them. If Koha userid values
+will match the username portion of the userPrincipalName, and the domain suffix is the same for all users, then use principal_name
+like this:
+ <principal_name>%s@core.my_company.com</principal_name>
+
+The user of the previous example, barnes.7, would then attempt to bind as:
+ barnes.7@core.my_company.com
=head1 SEE ALSO
CGI(3)
-C4::Output(3)
+Net::LDAP()
+
+XML::Simple()
Digest::MD5(3)
+sprintf()
+
=cut
+
+# For reference, here's an important difference in the data structure we rely on.
+# ========================================
+# Using attrs instead of {asn}->attributes
+# ========================================
+#
+# LDAP key: ->{ cn} = ARRAY w/ 3 members.
+# LDAP key: ->{ cn}->{ sss} = sss
+# LDAP key: ->{ cn}->{ Steve Smith} = Steve Smith
+# LDAP key: ->{ cn}->{Steve S. Smith} = Steve S. Smith
+#
+# LDAP key: ->{ givenname} = ARRAY w/ 1 members.
+# LDAP key: ->{ givenname}->{Steve} = Steve
+#
projects / koha.git / blobdiff