qpsmtpd/plugins/auth/auth_vpopmail

106 lines
3.1 KiB
Perl

#!perl -w
=head1 NAME
auth_vpopmail - Authenticate against libvpopmail.a
=head1 DESCRIPTION
This plugin authenticates vpopmail users using p5-vpopmail.
Using CRAM-MD5 requires that vpopmail be built with the
'--enable-clear-passwd=y' option.
=head1 CONFIGURATION
This module will only work if qpsmtpd is running as the 'vpopmail' user.
CRAM-MD5 authentication will only work with p5-vpopmail 0.09 or higher.
http://github.com/sscanlon/vpopmail
Decide which authentication methods you are willing to support and uncomment
the lines in the register() sub. See the POD for Qspmtpd::Auth for more
details on the ramifications of supporting various authentication methods.
=head1 SEE ALSO
For an overview of the vpopmail authentication plugins and their merits,
please read the VPOPMAIL section in docs/authentication.pod
=head1 AUTHOR
Matt Simerson <msimerson@cpan.org>
=head1 COPYRIGHT AND LICENSE
Copyright (c) 2010 Matt Simerson
This plugin is licensed under the same terms as the qpsmtpd package itself.
Please see the LICENSE file included with qpsmtpd for details.
=cut
use strict;
use warnings;
use Qpsmtpd::Auth;
use Qpsmtpd::Constants;
#use vpopmail; # we eval this in $test_vpopmail_module
sub register {
my ($self, $qp) = @_;
return DECLINED if !$self->test_vpopmail_module();
$self->register_hook("auth-plain", "auth_vpopmail");
$self->register_hook("auth-login", "auth_vpopmail");
$self->register_hook("auth-cram-md5", "auth_vpopmail");
}
sub auth_vpopmail {
my ($self, $transaction, $method, $user, $passClear, $passHash, $ticket) =
@_;
my $pw = vauth_getpw(split /@/, lc($user));
my $pw_clear_passwd = $pw->{pw_clear_passwd};
my $pw_passwd = $pw->{pw_passwd};
if (!$pw || (!$pw_clear_passwd && !$pw_passwd)) {
$self->log(LOGINFO, "fail: invalid user $user");
return DENY, "auth_vpopmail - invalid user";
# change DENY to DECLINED to support multiple auth plugins
}
return
Qpsmtpd::Auth::validate_password(
$self,
src_clear => $pw->{pw_clear_passwd},
src_crypt => $pw->{pw_passwd},
attempt_clear => $passClear,
attempt_hash => $passHash,
method => $method,
ticket => $ticket,
deny => DENY,
);
}
sub test_vpopmail_module {
my $self = shift;
# vpopmail will not allow vauth_getpw to succeed unless the requesting user is vpopmail or root.
# by default, qpsmtpd runs as the user 'qpsmtpd' and does not have permission.
eval 'use vpopmail';
if ($@) {
$self->log(LOGERROR, "skip: is vpopmail perl module installed?");
return;
}
my ($domain) = vpopmail::vlistdomains();
my $r = vauth_getpw('postmaster', $domain) or do {
$self->log(LOGERROR, "skip: could not query vpopmail");
return;
};
return 1;
}