697 lines
22 KiB
Perl
697 lines
22 KiB
Perl
##@file
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# LDAP common functions
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##@class
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# LDAP common functions
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package Lemonldap::NG::Portal::_LDAP;
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use Net::LDAP; #inherits
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use Net::LDAP::Util qw(escape_filter_value);
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use Exporter;
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use base qw(Exporter Net::LDAP);
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use Lemonldap::NG::Portal::Simple;
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use Encode;
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use Unicode::String qw(utf8);
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use strict;
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our @EXPORT = qw(ldap);
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our $VERSION = '2.0.0';
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our $ppLoaded = 0;
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BEGIN {
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eval {
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require threads::shared;
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threads::shared::share($ppLoaded);
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};
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}
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## @cmethod Lemonldap::NG::Portal::_LDAP new(Lemonldap::NG::Portal::Simple portal)
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# Build a Net::LDAP object using parameters issued from $portal
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# @return Lemonldap::NG::Portal::_LDAP object
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sub new {
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my $class = shift;
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my $portal = shift;
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my $self;
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unless ($portal) {
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$class->abort("$class : portal argument required !");
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}
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my $useTls = 0;
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my $tlsParam;
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my @servers = ();
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foreach my $server ( split /[\s,]+/, $portal->{ldapServer} ) {
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if ( $server =~ m{^ldap\+tls://([^/]+)/?\??(.*)$} ) {
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$useTls = 1;
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$server = $1;
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$tlsParam = $2 || "";
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}
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else {
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$useTls = 0;
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}
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push @servers, $server;
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}
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$self = Net::LDAP->new(
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\@servers,
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onerror => undef,
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( $portal->{ldapPort} ? ( port => $portal->{ldapPort} ) : () ),
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( $portal->{ldapTimeout} ? ( timeout => $portal->{ldapTimeout} ) : () ),
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( $portal->{ldapVersion} ? ( version => $portal->{ldapVersion} ) : () ),
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( $portal->{ldapRaw} ? ( raw => $portal->{ldapRaw} ) : () ),
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);
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unless ($self) {
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$portal->lmLog( $@, 'error' );
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return 0;
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}
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bless $self, $class;
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if ($useTls) {
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my %h = split( /[&=]/, $tlsParam );
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$h{cafile} = $portal->{caFile} if ( $portal->{caFile} );
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$h{capath} = $portal->{caPath} if ( $portal->{caPath} );
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my $mesg = $self->start_tls(%h);
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if ( $mesg->code ) {
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$portal->lmLog( 'StartTLS failed', 'error' );
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return 0;
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}
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}
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$self->{portal} = $portal;
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# Setting default LDAP password storage encoding to utf-8
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$self->{portal}->{ldapPwdEnc} ||= 'utf-8';
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return $self;
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}
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## @method Net::LDAP::Message bind(string dn, hash args)
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# Reimplementation of Net::LDAP::bind(). Connection is done :
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# - with $dn and $args->{password} as dn/password if defined,
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# - or with Lemonldap::NG account,
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# - or with an anonymous bind.
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# @param $dn LDAP distinguish name
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# @param %args See Net::LDAP(3) manpage for more
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# @return Net::LDAP::Message
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sub bind {
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my $self = shift;
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my $mesg;
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my ( $dn, %args ) = @_;
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unless ($dn) {
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$dn = $self->{portal}->{managerDn};
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$args{password} = decode( 'utf-8', $self->{portal}->{managerPassword} );
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}
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if ( $dn && $args{password} ) {
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if ( $self->{portal}->{ldapPwdEnc} ne 'utf-8' ) {
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eval {
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my $tmp = encode(
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$self->{portal}->{ldapPwdEnc},
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decode( 'utf-8', $args{password} )
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);
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$args{password} = $tmp;
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};
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print STDERR "$@\n" if ($@);
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}
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$mesg = $self->SUPER::bind( $dn, %args );
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}
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else {
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$mesg = $self->SUPER::bind();
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}
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return $mesg;
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}
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## @method Net::LDAP::Message unbind()
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# Reimplementation of Net::LDAP::unbind() to force call to disconnect()
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# @return Net::LDAP::Message
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sub unbind {
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my $self = shift;
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my $ldap_uri = $self->uri;
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$self->{portal}->lmLog( "Unbind and disconnect from $ldap_uri", 'debug' );
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my $mesg = $self->SUPER::unbind();
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$self->SUPER::disconnect();
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return $mesg;
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}
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## @method private boolean loadPP ()
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# Load Net::LDAP::Control::PasswordPolicy
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# @return true if succeed.
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sub loadPP {
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my $self = shift;
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return 1 if ($ppLoaded);
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# Minimal version of Net::LDAP required
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if ( $Net::LDAP::VERSION < 0.38 ) {
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$self->{portal}->abort(
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"Module Net::LDAP is too old for password policy, please install version 0.38 or higher"
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);
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}
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# Require Perl module
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eval { require Net::LDAP::Control::PasswordPolicy };
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if ($@) {
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$self->{portal}->lmLog(
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"Module Net::LDAP::Control::PasswordPolicy not found in @INC",
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'error' );
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return 0;
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}
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$ppLoaded = 1;
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}
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## @method protected int userBind(string dn, hash args)
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# Call bind() with dn/password and return
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# @param $dn LDAP distinguish name
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# @param %args See Net::LDAP(3) manpage for more
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# @return Lemonldap::NG portal error code
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sub userBind {
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my $self = shift;
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if ( $self->{portal}->{ldapPpolicyControl} ) {
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# Create Control object
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my $pp = Net::LDAP::Control::PasswordPolicy->new();
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# Bind with user credentials
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my $mesg = $self->bind( @_, control => [$pp] );
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# Get server control response
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my ($resp) = $mesg->control("1.3.6.1.4.1.42.2.27.8.5.1");
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# Return direct unless control resonse
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unless ( defined $resp ) {
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if ( $mesg->code == 49 ) {
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$self->{portal}->_sub( 'userError',
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"Bad password for $self->{portal}->{user}" );
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return PE_BADCREDENTIALS;
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}
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return ( $mesg->code == 0 ? PE_OK : PE_LDAPERROR );
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}
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# Check for ppolicy error
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my $pp_error = $resp->pp_error;
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if ( defined $pp_error ) {
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$self->{portal}->_sub( 'userError',
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"Password policy error $pp_error for $self->{portal}->{user}" );
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return [
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PE_PP_PASSWORD_EXPIRED,
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PE_PP_ACCOUNT_LOCKED,
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PE_PP_CHANGE_AFTER_RESET,
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PE_PP_PASSWORD_MOD_NOT_ALLOWED,
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PE_PP_MUST_SUPPLY_OLD_PASSWORD,
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PE_PP_INSUFFICIENT_PASSWORD_QUALITY,
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PE_PP_PASSWORD_TOO_SHORT,
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PE_PP_PASSWORD_TOO_YOUNG,
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PE_PP_PASSWORD_IN_HISTORY,
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]->[$pp_error];
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}
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elsif ( $mesg->code == 0 ) {
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# Get expiration warning and graces
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if ( $resp->grace_authentications_remaining ) {
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$self->{portal}->info( "<h3>"
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. $resp->grace_authentications_remaining . " "
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. $self->{portal}->msg(PM_PP_GRACE)
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. "</h3>" );
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}
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if ( $resp->time_before_expiration ) {
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$self->{portal}->info(
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"<h3>"
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. sprintf(
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$self->{portal}->msg(PM_PP_EXP_WARNING),
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$self->{portal}
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->convertSec( $resp->time_before_expiration )
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)
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. "</h3>"
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);
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}
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return PE_OK;
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}
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}
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else {
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my $mesg = $self->bind(@_);
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if ( $mesg->code == 0 ) {
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return PE_OK;
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}
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}
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$self->{portal}
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->_sub( 'userError', "Bad password for $self->{portal}->{user}" );
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return PE_BADCREDENTIALS;
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}
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## @method int userModifyPassword(string dn, string newpassword, string confirmpassword, string oldpassword, boolean ad)
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# Change user's password.
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# @param $dn DN
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# @param $newpassword New password
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# @param $confirmpassword New password
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# @param $oldpassword Current password
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# @param $ad Active Directory mode
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# @return Lemonldap::NG::Portal constant
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sub userModifyPassword {
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my ( $self, $dn, $newpassword, $confirmpassword, $oldpassword, $ad ) = @_;
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my $ppolicyControl = $self->{portal}->{ldapPpolicyControl};
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my $setPassword = $self->{portal}->{ldapSetPassword};
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my $asUser = $self->{portal}->{ldapChangePasswordAsUser};
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my $requireOldPassword = $self->{portal}->{portalRequireOldPassword};
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my $passwordAttribute = "userPassword";
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my $err;
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my $mesg;
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# Verify confirmation password matching
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unless ( $newpassword eq $confirmpassword ) {
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$self->{portal}->lmLog(
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"Password $newpassword and password $confirmpassword are not the same",
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'debug'
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);
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return PE_PASSWORD_MISMATCH;
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}
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# Adjust configuration for AD
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if ($ad) {
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$ppolicyControl = 0;
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$setPassword = 0;
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$passwordAttribute = "unicodePwd";
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# Encode password for AD
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$newpassword = utf8( chr(34) . $newpassword . chr(34) )->utf16le();
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if ( $oldpassword and $asUser ) {
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$oldpassword = utf8( chr(34) . $oldpassword . chr(34) )->utf16le();
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}
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$self->{portal}->lmLog( "Active Directory mode enabled", 'debug' );
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}
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# First case: no ppolicy
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if ( !$ppolicyControl ) {
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if ($setPassword) {
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# Bind as user if oldpassword and ldapChangePasswordAsUser
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if ( $oldpassword and $asUser ) {
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$mesg = $self->bind( $dn, password => $oldpassword );
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if ( $mesg->code != 0 ) {
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$self->{portal}->lmLog( "Bad old password", 'debug' );
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return PE_BADOLDPASSWORD;
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}
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}
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# Use SetPassword extended operation
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require Net::LDAP::Extension::SetPassword;
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$mesg =
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($oldpassword)
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? $self->set_password(
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user => $dn,
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oldpasswd => $oldpassword,
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newpasswd => $newpassword
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)
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: $self->set_password(
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user => $dn,
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newpasswd => $newpassword
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);
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# Catch the "Unwilling to perform" error
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if ( $mesg->code == 53 ) {
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$self->{portal}->lmLog( "Bad old password", 'debug' );
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return PE_BADOLDPASSWORD;
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}
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}
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else {
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# AD specific
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# Change password as user with a delete/add modification
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if ( $ad and $oldpassword and $asUser ) {
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$mesg = $self->modify(
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$dn,
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changes => [
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delete => [ $passwordAttribute => $oldpassword ],
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add => [ $passwordAttribute => $newpassword ]
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]
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);
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}
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else {
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if ($requireOldPassword) {
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return PE_MUST_SUPPLY_OLD_PASSWORD if ( !$oldpassword );
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# Check old password with a bind
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$mesg = $self->bind( $dn, password => $oldpassword );
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# For AD password expiration to work:
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# ppolicy must be desactivated,
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# and "change as user" must be desactivated
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if ($ad) {
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if ( $mesg->error =~ /LdapErr: .* data ([^,]+),.*/ ) {
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# extended data message code:
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# 532: password expired (but provided password is correct)
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# 773: must change password at next connection (but provided password is correct)
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# 52e: password is incorrect
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unless ( ( $1 eq '532' ) || ( $1 eq '773' ) ) {
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$self->{portal}
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->lmLog( "Bad old password", 'warn' );
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return PE_BADOLDPASSWORD;
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}
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}
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# if error message has not been catched, then it IS a success
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}
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else
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{ # this is not AD, a 0 error code means good old password
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if ( $mesg->code != 0 ) {
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$self->{portal}
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->lmLog( "Bad old password", 'warn' );
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return PE_BADOLDPASSWORD;
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}
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}
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# Rebind as Manager only if user is not granted to change its password
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$self->bind() unless $asUser;
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}
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# Use standard modification
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$mesg =
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$self->modify( $dn,
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replace => { $passwordAttribute => $newpassword } );
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}
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}
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$self->{portal}
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->lmLog( "Modification return code: " . $mesg->code, 'debug' );
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return PE_WRONGMANAGERACCOUNT
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if ( $mesg->code == 50 || $mesg->code == 8 );
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return PE_PP_INSUFFICIENT_PASSWORD_QUALITY
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if ( $mesg->code == 53 && $ad );
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return PE_PP_PASSWORD_MOD_NOT_ALLOWED
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if ( $mesg->code == 19 && $ad );
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return PE_LDAPERROR unless ( $mesg->code == 0 );
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$self->{portal}
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->_sub( 'userNotice', "Password changed $self->{portal}->{user}" );
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# Rebind as manager for next LDAP operations if we were bound as user
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$self->bind() if $asUser;
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return PE_PASSWORD_OK;
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}
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else {
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# Create Control object
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my $pp = Net::LDAP::Control::PasswordPolicy->new;
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if ($setPassword) {
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# Bind as user if oldpassword and ldapChangePasswordAsUser
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if ( $oldpassword and $asUser ) {
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$mesg = $self->bind(
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$dn,
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password => $oldpassword,
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control => [$pp]
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);
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my ($bind_resp) = $mesg->control("1.3.6.1.4.1.42.2.27.8.5.1");
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unless ( defined $bind_resp ) {
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if ( $mesg->code != 0 ) {
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$self->{portal}->lmLog( "Bad old password", 'debug' );
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return PE_BADOLDPASSWORD;
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}
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}
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else {
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# Check if password is expired
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my $pp_error = $bind_resp->pp_error;
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if ( defined $pp_error
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and $pp_error == 0
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and $self->{portal}->{ldapAllowResetExpiredPassword} )
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{
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$self->{portal}->lmLog(
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"Password is expired but user is allowed to change it",
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'debug'
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);
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}
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else {
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if ( $mesg->code != 0 ) {
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$self->{portal}
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->lmLog( "Bad old password", 'debug' );
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return PE_BADOLDPASSWORD;
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}
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}
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}
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}
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# Use SetPassword extended operation
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# Warning: need a patch on Perl-LDAP
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# See http://groups.google.com/group/perl.ldap/browse_thread/thread/5703a41ccb17b221/377a68f872cc2bb4?lnk=gst&q=setpassword#377a68f872cc2bb4
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use Net::LDAP::Extension::SetPassword;
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$mesg =
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($oldpassword)
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? $self->set_password(
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user => $dn,
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oldpasswd => $oldpassword,
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newpasswd => $newpassword,
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control => [$pp]
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)
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: $self->set_password(
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user => $dn,
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newpasswd => $newpassword,
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control => [$pp]
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);
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# Catch the "Unwilling to perform" error
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if ( $mesg->code == 53 ) {
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$self->{portal}->lmLog( "Bad old password", 'debug' );
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return PE_BADOLDPASSWORD;
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}
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}
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else {
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if ($oldpassword) {
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# Check old password with a bind
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$mesg = $self->bind(
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$dn,
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password => $oldpassword,
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control => [$pp]
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);
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my ($bind_resp) = $mesg->control("1.3.6.1.4.1.42.2.27.8.5.1");
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unless ( defined $bind_resp ) {
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if ( $mesg->code != 0 ) {
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$self->{portal}->lmLog( "Bad old password", 'debug' );
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return PE_BADOLDPASSWORD;
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}
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}
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else {
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# Check if password is expired
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my $pp_error = $bind_resp->pp_error;
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if ( defined $pp_error
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and $pp_error == 0
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and $self->{portal}->{ldapAllowResetExpiredPassword} )
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{
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$self->{portal}->lmLog(
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"Password is expired but user is allowed to change it",
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'debug'
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);
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}
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else {
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if ( $mesg->code != 0 ) {
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$self->{portal}
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->lmLog( "Bad old password", 'debug' );
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return PE_BADOLDPASSWORD;
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}
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}
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}
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# Rebind as Manager only if user is not granted to change its password
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$self->bind()
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unless $asUser;
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}
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# Use standard modification
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$mesg = $self->modify(
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$dn,
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replace => { $passwordAttribute => $newpassword },
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control => [$pp]
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);
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}
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# Get server control response
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my ($resp) = $mesg->control("1.3.6.1.4.1.42.2.27.8.5.1");
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$self->{portal}
|
||
->lmLog( "Modification return code: " . $mesg->code, 'debug' );
|
||
return PE_WRONGMANAGERACCOUNT
|
||
if ( $mesg->code == 50 || $mesg->code == 8 );
|
||
if ( $mesg->code == 0 ) {
|
||
$self->{portal}->_sub( 'userNotice',
|
||
"Password changed $self->{portal}->{user}" );
|
||
|
||
# Rebind as manager for next LDAP operations if we were bound as user
|
||
$self->bind() if $asUser;
|
||
|
||
return PE_PASSWORD_OK;
|
||
}
|
||
|
||
if ( defined $resp ) {
|
||
my $pp_error = $resp->pp_error;
|
||
if ( defined $pp_error ) {
|
||
$self->{portal}->_sub( 'userError',
|
||
"Password policy error $pp_error for $self->{portal}->{user}"
|
||
);
|
||
return [
|
||
PE_PP_PASSWORD_EXPIRED,
|
||
PE_PP_ACCOUNT_LOCKED,
|
||
PE_PP_CHANGE_AFTER_RESET,
|
||
PE_PP_PASSWORD_MOD_NOT_ALLOWED,
|
||
PE_PP_MUST_SUPPLY_OLD_PASSWORD,
|
||
PE_PP_INSUFFICIENT_PASSWORD_QUALITY,
|
||
PE_PP_PASSWORD_TOO_SHORT,
|
||
PE_PP_PASSWORD_TOO_YOUNG,
|
||
PE_PP_PASSWORD_IN_HISTORY,
|
||
]->[$pp_error];
|
||
}
|
||
}
|
||
else {
|
||
return PE_LDAPERROR;
|
||
}
|
||
}
|
||
}
|
||
|
||
## @method protected Lemonldap::NG::Portal::_LDAP ldap()
|
||
# @return Lemonldap::NG::Portal::_LDAP object
|
||
sub ldap {
|
||
my $self = shift;
|
||
return $self->{ldap}
|
||
if ( ref( $self->{ldap} ) and $self->{flags}->{ldapActive} );
|
||
if ( $self->{ldap} = Lemonldap::NG::Portal::_LDAP->new($self)
|
||
and my $mesg = $self->{ldap}->bind )
|
||
{
|
||
if ( $mesg->code != 0 ) {
|
||
$self->lmLog( "LDAP error: " . $mesg->error, 'error' );
|
||
$self->{ldap}->unbind;
|
||
}
|
||
else {
|
||
if ( $self->{ldapPpolicyControl}
|
||
and not $self->{ldap}->loadPP() )
|
||
{
|
||
$self->lmLog( "LDAP password policy error", 'error' );
|
||
$self->{ldap}->unbind;
|
||
}
|
||
else {
|
||
$self->{flags}->{ldapActive} = 1;
|
||
return $self->{ldap};
|
||
}
|
||
}
|
||
}
|
||
else {
|
||
$self->lmLog( "LDAP error: $@", 'error' );
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
## @method string searchGroups(string base, string key, string value, string attributes)
|
||
# Get groups from LDAP directory
|
||
# @param base LDAP search base
|
||
# @param key Attribute name in group containing searched value
|
||
# @param value Searched value
|
||
# @param attributes to get from found groups (array ref)
|
||
# @return hashRef groups
|
||
sub searchGroups {
|
||
my ( $self, $base, $key, $value, $attributes ) = @_;
|
||
|
||
my $portal = $self->{portal};
|
||
my $groups = {};
|
||
|
||
# Creating search filter
|
||
my $searchFilter =
|
||
"(&(objectClass=" . $portal->{ldapGroupObjectClass} . ")(|";
|
||
foreach ( split( $portal->{multiValuesSeparator}, $value ) ) {
|
||
$searchFilter .= "(" . $key . "=" . escape_filter_value($_) . ")";
|
||
}
|
||
$searchFilter .= "))";
|
||
|
||
$portal->lmLog( "Group search filter: $searchFilter", 'debug' );
|
||
|
||
# Search
|
||
my $mesg = $self->search(
|
||
base => $base,
|
||
filter => $searchFilter,
|
||
attrs => $attributes,
|
||
);
|
||
|
||
# Browse results
|
||
if ( $mesg->code() == 0 ) {
|
||
|
||
foreach my $entry ( $mesg->all_entries ) {
|
||
|
||
$portal->lmLog( "Matching group " . $entry->dn() . " found",
|
||
'debug' );
|
||
|
||
# If recursive search is activated, do it here
|
||
if ( $portal->{ldapGroupRecursive} ) {
|
||
|
||
# Get searched value
|
||
my $group_value =
|
||
$self->getLdapValue( $entry,
|
||
$portal->{ldapGroupAttributeNameGroup} );
|
||
|
||
# Launch group search
|
||
if ($group_value) {
|
||
|
||
$portal->lmLog( "Recursive search for $group_value",
|
||
'debug' );
|
||
|
||
my $recursive_groups =
|
||
$self->searchGroups( $base, $key, $group_value,
|
||
$attributes );
|
||
|
||
my %allGroups = ( %$groups, %$recursive_groups )
|
||
if ( ref $recursive_groups );
|
||
$groups = \%allGroups;
|
||
}
|
||
}
|
||
|
||
# Use first attribute as group name
|
||
my $groupName = $entry->get_value( $attributes->[0] );
|
||
$groups->{$groupName}->{name} = $groupName;
|
||
|
||
# Now parse attributes
|
||
foreach (@$attributes) {
|
||
|
||
# Next if group attribute value
|
||
next if ( $_ eq $portal->{ldapGroupAttributeValueGroup} );
|
||
|
||
my $data = $entry->get_value( $_, asref => 1 );
|
||
|
||
if ($data) {
|
||
$portal->lmLog( "Store values of $_ in group $groupName",
|
||
'debug' );
|
||
$groups->{$groupName}->{$_} = $data;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
return $groups;
|
||
}
|
||
|
||
## @method string getLdapValue(Net::LDAP::Entry entry, string attribute)
|
||
# Get the dn, or the attribute value with a separator for multi-valuated attributes
|
||
# @param entry LDAP entry
|
||
# @param attribute Attribute name
|
||
# @return string value
|
||
sub getLdapValue {
|
||
my ( $self, $entry, $attribute ) = @_;
|
||
|
||
return $entry->dn() if ( $attribute eq "dn" );
|
||
|
||
my $value;
|
||
|
||
foreach ( $entry->get_value($attribute) ) {
|
||
$value .= $_;
|
||
$value .= $self->{portal}->{multiValuesSeparator};
|
||
}
|
||
|
||
$value =~ s/\Q$self->{portal}->{multiValuesSeparator}\E$//;
|
||
|
||
return $value;
|
||
}
|
||
|
||
1;
|