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# $Id: RejectMsgEditor.pm,v 1.6 2004/02/26 19:24:53 tvierling Exp $
#
# Copyright (c) 2002-2004 Todd Vierling <tv@pobox.com> <tv@duh.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# 3. Neither the name of the author nor the names of contributors may be used
# to endorse or promote products derived from this software without specific
# prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
package Mail::Milter::Wrapper::RejectMsgEditor;
use 5.006;
use base Exporter;
use base Mail::Milter::Wrapper;
use strict;
use warnings;
use Carp;
use Mail::Milter::ContextWrapper;
use Sendmail::Milter 0.18; # get needed constants
our $VERSION = '0.03';
=pod
=head1 NAME
Mail::Milter::Wrapper::RejectMsgEditor - milter wrapper to edit rejection messages
=head1 SYNOPSIS
use Mail::Milter::Wrapper::RejectMsgEditor;
my $milter = ...;
my $wrapper = new Mail::Milter::Wrapper::RejectMsgEditor($milter, \&sub);
my $wrapper2 = &RejectMsgEditor($milter, \&sub); # convenience
=head1 DESCRIPTION
Mail::Milter::Wrapper::RejectMsgEditor is a convenience milter wrapper
which allows editing of the messages returned for all SMFIS_REJECT
rejections. The subroutine provided should edit $_ and need not return
any value.
If the contained milter did not call C<$ctx->setreply()> before returning
a rejection code, then a default message will be used.
For example:
my $wrapped_milter = &RejectMsgEditor($milter, sub {
s,$, - Please e-mail postmaster\@foo.com for assistance.,
});
=cut
our @EXPORT = qw(&RejectMsgEditor);
sub RejectMsgEditor {
new Mail::Milter::Wrapper::RejectMsgEditor(@_);
}
sub new ($$\&) {
my $this = Mail::Milter::Wrapper::new(shift, shift,
\&wrapper, qw{connect close});
$this->{_editor} = shift;
$this;
}
# internal methods
sub wrapper {
my $this = shift;
my $cbname = shift;
my $callback_sub = shift;
my $oldctx = shift;
my $newctx = $oldctx->getpriv();
unless (defined($newctx)) {
$newctx = new Mail::Milter::ContextWrapper($oldctx, {
setreply => sub { shift->set_key(reply => [ @_ ]); },
});
$oldctx->setpriv($newctx);
}
my $rc = &$callback_sub($newctx, @_);
my $reply = $newctx->get_key('reply');
$newctx->set_key(reply => undef);
if ($rc == SMFIS_REJECT) {
$reply = [ 554, '5.7.0', 'Command rejected' ] unless $reply;
local $_ = $reply->[2];
&{$this->{_editor}};
$reply->[2] = $_;
}
$oldctx->setreply(@$reply) if $reply;
$oldctx->setpriv(undef) if ($cbname eq 'close');
$rc;
}
1;
__END__
=head1 AUTHOR
Todd Vierling, E<lt>tv@duh.orgE<gt> E<lt>tv@pobox.comE<gt>
=head1 SEE ALSO
L<Mail::Milter::Wrapper>
=cut
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