lemonldap-ng/modules/lemonldap-ng-portal/lib/Lemonldap/NG/Portal/_Multi.pm

142 lines
4.7 KiB
Perl

## @file
# Authentication and UserDB chaining mechanism
## @class
# Authentication and UserDB chaining mechanism.
# To use it set your authentication module like this :
# authentication => 'Multi CAS;LDAP'
#
# If CAS failed, LDAP will be used. You can also add a condition. Example:
# authentication => 'Multi Remote $ENV{REMOTE_ADDR}=~/^192/;LDAP $ENV{REMOTE_ADDR}!~/^192/'
package Lemonldap::NG::Portal::_Multi;
use Lemonldap::NG::Portal::Simple;
our $VERSION = '1.0.0';
## @cmethod Lemonldap::NG::Portal::_Multi new(Lemonldap::NG::Portal::Simple portal)
# Constructor
# @param $portal Lemonldap::NG::Portal::Simple object
# @return new Lemonldap::NG::Portal::_Multi object
sub new {
my ( $class, $portal ) = splice @_;
my $self = bless { p => $portal, res => PE_NOSCHEME }, $class;
my @stack = ( $portal->{authentication}, $portal->{userDB} );
for ( my $i = 0 ; $i < 2 ; $i++ ) {
$stack[$i] =~ s/^Multi\s*//;
foreach my $l ( split /;/, $stack[$i] ) {
$l =~ /^([\w#]+)(?:\s+(.*))?$/
or $portal->abort( 'Bad configuration', "Unable to read $l" );
my ( $mod, $cond ) = ( $1, $2 );
my $name = $mod;
$mod =~ s/#(.*)$//;
$cond = 1 unless ( defined $cond );
$mod = "Lemonldap::NG::Portal::" . [ 'Auth', 'UserDB' ]->[$i] . $mod
unless ( $mod =~ /::/ );
$portal->abort( 'Bad configuration', "Unable to load $mod" )
unless $self->{p}->loadModule($mod);
push @{ $self->{stack}->[$i] },
{ m => $mod, c => $cond, n => $name };
}
}
return $self;
}
## @method int try(string sub,int type)
# Main method: try to call $sub method in the current authentication or
# userDB module. If it fails, call next() and replay()
# @param sub name of the method to launch
# @param type 0 for authentication, 1 for userDB
# @return Lemonldap::NG::Portal error code returned by method $sub
sub try {
my ( $self, $sub, $type ) = splice @_;
my $res;
my $s = $self->{stack}->[$type]->[0]->{m} . "::$sub";
my $old = $self->{stack}->[$type]->[0]->{n};
my $ci;
if ( $ci = $self->{p}->safe->reval( $self->{stack}->[$type]->[0]->{c} ) ) {
# Log used module
$self->{p}->lmLog( "Multi (type $type): trying module $old", 'debug' );
# Run subroutine
$res = $self->{p}->$s();
# Stop if no error, or if confirmation needed, or if form not filled
return $res
if ( $res <= 0
or $res == PE_CONFIRM
or $res == PE_FIRSTACCESS
or $res == PE_FORMEMPTY );
}
unless ( $self->next($type) ) {
return ( $ci ? $res : $self->{res} );
}
$self->{res} = $res if ( defined($res) );
$self->{p}->lmLog(
[ 'Authentication', 'Retriving user' ]->[$type]
. " with $old failed, trying next",
'info'
) if ($ci);
$res = $self->replay( $sub, $type );
return $res;
}
## @method protected boolean next(int type)
# Set the next authentication or userDB module as current. If both
# authentication and userDB module have the same name, both are changed if
# possible.
# @param type 0 for authentication, 1 for userDB
# return true if an other module is available
sub next {
my ( $self, $type ) = splice @_;
if ( $self->{stack}->[$type]->[0]->{n} eq
$self->{stack}->[ 1 - $type ]->[0]->{n}
and $self->{stack}->[ 1 - $type ]->[1] )
{
shift @{ $self->{stack}->[ 1 - $type ] };
}
shift @{ $self->{stack}->[$type] };
return 0 unless ( @{ $self->{stack}->[$type] } );
%{ $self->{p} } = (
%{ $self->{p} },
%{ $self->{p}->{multi}->{ $self->{stack}->[$type]->[0]->{n} } }
) if ( $self->{p}->{multi}->{ $self->{stack}->[$type]->[0]->{n} } );
return 1;
}
## @method protected int replay(string sub)
# replay all methods since authInit() until method $sub with the new module.
# @param $sub name of the method who has failed
# @return Lemonldap::NG::Portal error code
sub replay {
my ( $self, $sub ) = splice @_;
my @subs = ();
foreach (
qw(authInit extractFormInfo userDBInit getUser setAuthSessionInfo
setSessionInfo setGroups authFinish)
)
{
push @subs, $_;
last if ( $_ eq $sub );
}
return $self->{p}->_subProcess(@subs);
}
package Lemonldap::NG::Portal::Simple;
## @method private Lemonldap::NG::Portal::_Multi _multi()
# Return Lemonldap::NG::Portal::_Multi object and builds it if it was not build
# before. This method is used if authentication is set to "Multi".
# @return Lemonldap::NG::Portal::_Multi object
sub _multi {
my $self = shift;
return $self->{_multi} if ( $self->{_multi} );
return $self->{_multi} = Lemonldap::NG::Portal::_Multi->new($self);
}
1;