qpsmtpd/plugins/auth/auth_cvm_unix_local
Ask Bjørn Hansen a67b39e282 r4215@g5: ask | 2006-01-24 23:11:01 -0800
From:   gordonr@gormand.com.au
 Subject: Re: Submitting plugins (was Re: New plugin: denybounce)
 Date: January 24, 2006 9:02:35 PM PST
 To:   ask@develooper.com
 Cc:   gavin@openfusion.com.au, qpsmtpd@perl.org
 Message-Id: <43D7066B.3050106@gormand.com.au>
 
 Ask Bjørn Hansen wrote:
 On Jan 24, 2006, at 1:08 PM, Gordon Rowell wrote:
 - License statement - either as per qpsmtpd or as per Perl or  similar open license
 No, it really should be MIT licensed ("as per qpsmtpd") to go in the  distribution.
 There are a few exceptions (only your plugins at a cursory glance),  but those are mistakes.  :-)
 
 I don't have an issue with my qpsmtpd plugins being changed to state:
 
 
 =head1 AUTHOR
 
 Copyright 2005 Gordon Rowell <gordonr@gormand.com.au>
 
 This software is free software and may be distributed under the same
 terms as qpsmtpd itself.
 
 
 Though as a distro maintainer, we do have a sizeable issue with license proliferation. It really is a bit of a nightmare when two licenses are almost, but not completely, the same.
 
 Thanks,
 
 Gordon
 
 r4216@g5:  ask | 2006-01-24 23:12:21 -0800
 merge license fix from trunk


git-svn-id: https://svn.perl.org/qpsmtpd/branches/0.3x@603 958fd67b-6ff1-0310-b445-bb7760255be9
2006-01-25 07:12:34 +00:00

110 lines
2.7 KiB
Perl

#!/usr/bin/perl -w
=head1 NAME
auth_cvm_unix_local - SMTP AUTH LOGIN module using
Bruce Guenther's Credential Validation Module (CVM)
http://untroubled.org/cvm/
=head1 SYNOPSIS
In config/plugins:
auth/auth_cvm_unix_local \
cvm_socket /var/lib/cvm/cvm-unix-local.socket \
enable_smtp no \
enable_ssmtp yes
=head1 BUGS
- Should probably handle auth-cram-md5 as well. However, this requires
access to the plain text password. We could store a separate database
of passwords purely for SMTP AUTH, for example as an optional
SMTPAuthPassword property of an account in the esmith::AccountsDB;
=head1 DESCRIPTION
This plugin implements an authentication plugin using Bruce Guenther's
Credential Validation Module (http://untroubled.org/cvm).
=head1 AUTHOR
Copyright 2005 Gordon Rowell <gordonr@gormand.com.au>
This software is free software and may be distributed under the same
terms as qpsmtpd itself.
=head1 VERSION
Version $Id: auth_cvm_unix_local,v 1.1 2005/06/09 22:50:06 gordonr Exp gordonr $
=cut
use Socket;
use constant SMTP_PORT => getservbyname("smtp", "tcp") || 25;
use constant SSMTP_PORT => getservbyname("ssmtp", "tcp") || 465;
sub register
{
my ( $self, $qp, %arg ) = @_;
unless ($arg{cvm_socket})
{
$self->log(LOGERROR, "authcvm - requires cvm_socket argument");
return 0;
}
$self->{_enable_smtp} = $arg{enable_smtp} || 'no';
$self->{_enable_ssmtp} = $arg{enable_ssmtp} || 'yes';
my $port = $ENV{PORT} || SMTP_PORT;
return 0 if ($port == SMTP_PORT and $self->{_enable_smtp} ne 'yes');
return 0 if ($port == SSMTP_PORT and $self->{_enable_ssmtp} ne 'yes');
if ($arg{cvm_socket} =~ /^([\w\/.-]+)$/)
{
$self->{_cvm_socket} = $1;
}
unless (-S $self->{_cvm_socket})
{
$self->log(LOGERROR, "authcvm - cvm_socket missing or not usable");
return 0;
}
$self->register_hook("auth-plain", "authcvm_plain");
$self->register_hook("auth-login", "authcvm_plain");
# $self->register_hook("auth-cram-md5", "authcvm_hash");
}
sub authcvm_plain
{
my ( $self, $transaction, $method, $user, $passClear, $passHash, $ticket ) =
@_;
$self->log(LOGINFO, "authcvm/$method authentication attempt for: $user");
socket(SOCK, PF_UNIX, SOCK_STREAM, 0)
or return (DENY, "authcvm/$method");
connect(SOCK, sockaddr_un($self->{_cvm_socket}))
or return (DENY, "authcvm/$method");
my $o = select(SOCK); $| = 1; select($o);
my ($u, $host) = split(/\@/, $user);
$host ||= "localhost";
print SOCK "\001$u\000$host\000$passClear\000\000";
shutdown SOCK, 1;
my $ret = <SOCK>;
my ($s) = unpack ("C", $ret);
return (
($s ? $s == 100 ? DENY : DECLINED
: OK),
"authcvm/$method");
}