223 lines
6.5 KiB
Perl
223 lines
6.5 KiB
Perl
##@file
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# Auth-basic authentication with Lemonldap::NG rights management
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##@class
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# Auth-basic authentication with Lemonldap::NG rights management
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package Lemonldap::NG::Handler::AuthBasic;
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use strict;
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use Lemonldap::NG::Handler::SharedConf qw(:all);
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use Digest::MD5 qw(md5_base64);
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use MIME::Base64;
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use SOAP::Lite; # link protected portalRequest
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use base qw(Lemonldap::NG::Handler::SharedConf);
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use utf8;
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no utf8;
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our $VERSION = '0.2';
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# We need just this constant, that's why Portal is 'required' but not 'used'
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*PE_OK = *Lemonldap::NG::Portal::SharedConf::PE_OK;
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# Apache constants
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BEGIN {
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if ( MP() == 2 ) {
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*AUTH_REQUIRED = \&Apache2::Const::AUTH_REQUIRED;
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require Apache2::Access;
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}
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elsif ( MP() == 0 ) {
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eval 'sub AUTH_REQUIRED {1}';
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}
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}
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## @rmethod int run(Apache2::RequestRec apacheRequest)
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# overload run subroutine to implement Auth-Basic mechanism.
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# @param $apacheRequest current request
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# @return Apache constant
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sub run ($$) {
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my $class;
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( $class, $apacheRequest ) = @_;
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if ( time() - $lastReload > $reloadTime ) {
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unless ( my $tmp = $class->testConf(1) == OK ) {
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$class->lmLog( "$class: No configuration found", 'error' );
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return $tmp;
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}
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}
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return DECLINED unless ( $apacheRequest->is_initial_req );
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my $uri = $apacheRequest->uri
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. ( $apacheRequest->args ? "?" . $apacheRequest->args : "" );
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# AUTHENTICATION
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# I - recover the WWW-Authentication header
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my ( $id, $user, $pass );
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unless ( $user = lmHeaderIn( $apacheRequest, 'Authorization' ) ) {
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lmSetErrHeaderOut( $apacheRequest,
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'WWW-Authenticate' => 'Basic realm="Lemonldap::NG"' );
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return AUTH_REQUIRED;
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}
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$user =~ s/^Basic\s*//;
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# DEBUG
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$class->lmLog( "debug : $user", 'notice' );
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$id = md5_base64($user);
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# II - recover the user datas
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# 2.1 search if the user was the same as previous (very efficient in
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# persistent connection).
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unless ( $id eq $datas->{_session_id} ) {
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# 2.2 search in the local cache if exists
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unless ( $refLocalStorage and $datas = $refLocalStorage->get($id) ) {
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# 2.3 Authentication by Lemonldap::NG::Portal using SOAP request
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my $soap =
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SOAP::Lite->proxy( $class->portal() )
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->uri('urn:Lemonldap::NG::Common::CGI::SOAPService');
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$user = decode_base64($user);
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( $user, $pass ) = ( $user =~ /^(.*?):(.*)$/ );
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my $r = $soap->getCookies( $user, $pass );
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# Catch SOAP errors
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if ( $r->fault ) {
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$class->lmLog(
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"SOAP request to the portal failed: "
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. $r->fault->{faultstring},
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'error'
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);
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return SERVER_ERROR;
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}
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else {
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my $res = $r->result();
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# If authentication failed, display error
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if ( $res->{error} ) {
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$class->lmLog(
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"Authentication failed for $user "
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. $soap->error( 'fr', $res->{error} )->result(),
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'notice'
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);
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return AUTH_REQUIRED;
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}
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$id = $res->{cookies}->{$cookieName};
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}
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# Now, normal work to find session
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my %h;
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eval { tie %h, $globalStorage, $id, $globalStorageOptions; };
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if ($@) {
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# The cookie isn't yet available
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$class->lmLog( "The cookie $id isn't yet available: $@",
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'info' );
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$class->updateStatus( $apacheRequest->connection->remote_ip,
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$apacheRequest->uri, 'EXPIRED' );
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return $class->goToPortal($uri);
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}
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$datas->{$_} = $h{$_} foreach ( keys %h );
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# Store now the user in the local storage
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if ($refLocalStorage) {
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$refLocalStorage->set( $id, $datas, "20 minutes" );
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}
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untie %h;
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}
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}
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# ACCOUNTING
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# 1 - Inform Apache
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$class->lmSetApacheUser( $apacheRequest, $datas->{$whatToTrace} );
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# AUTHORIZATION
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return $class->forbidden($uri) unless ( $class->grant($uri) );
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$class->updateStatus( $datas->{$whatToTrace}, $apacheRequest->uri, 'OK' );
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$class->logGranted($uri);
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# ACCOUNTING
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# 2 - Inform remote application
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$class->sendHeaders;
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# SECURITY
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# Hide Lemonldap::NG cookie
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$class->hideCookie;
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# Hide user password
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lmSetHeaderIn( $apacheRequest, Authorization => '' );
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OK;
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}
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1;
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__END__
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=head1 NAME
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Lemonldap::NG::Handler::AuthBasic - Perl extension to be able to authenticate
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users by basic web system but to use Lemonldap::NG to control authorizations.
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=head1 SYNOPSIS
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Create your own package:
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package My::Package;
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use Lemonldap::NG::Handler::AuthBasic;
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# IMPORTANT ORDER
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our @ISA = qw (Lemonldap::NG::Handler::AuthBasic);
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__PACKAGE__->init ( {
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# Local storage used for sessions and configuration
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localStorage => "Cache::DBFile",
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localStorageOptions => {...},
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# How to get my configuration
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configStorage => {
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type => "DBI",
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dbiChain => "DBI:mysql:database=lemondb;host=$hostname",
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dbiUser => "lemonldap",
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dbiPassword => "password",
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}
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# Uncomment this to activate status module
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# status => 1,
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} );
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Call your package in <apache-directory>/conf/httpd.conf
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PerlRequire MyFile
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PerlHeaderParserHandler My::Package
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=head1 DESCRIPTION
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This library provides a way to use Lemonldap::NG to manage authorizations
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without using Lemonldap::NG for authentications. This can be used in conjunction
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with a normal Lemonldap::NG installation but to manage non-browser clients.
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=head1 SEE ALSO
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L<Lemonldap::NG::Handler(3)>,
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http://wiki.lemonldap.objectweb.org/xwiki/bin/view/NG/Presentation
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=head1 AUTHOR
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Xavier Guimard, E<lt>x.guimard@free.frE<gt>
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=head1 BUG REPORT
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Use OW2 system to report bug or ask for features:
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L<http://forge.objectweb.org/tracker/?group_id=274>
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=head1 DOWNLOAD
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Lemonldap::NG is available at
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L<http://forge.objectweb.org/project/showfiles.php?group_id=274>
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=head1 COPYRIGHT AND LICENSE
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Copyright (C) 2008 by Xavier Guimard E<lt>x.guimard@free.frE<gt>
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This library is free software; you can redistribute it and/or modify
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it under the same terms as Perl itself, either Perl version 5.8.4 or,
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at your option, any later version of Perl 5 you may have available.
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=cut
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