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package RT::Interface::Email::Authz::RequireEncrypted;

use strict;
use warnings;

use Role::Basic 'with';
with 'RT::Interface::Email::Role';

=head1 NAME

RT::Interface::Email::Authz::RequireEncrypted - Require that incoming email be encrypted

=head1 SYNOPSIS

This plugin allows restricting incoming emails to those which were
encrypted.  Plaintext emails are rejected, with a reply sent to the
originator using the C<Error: unencrypted message> template.

=cut

sub BeforeDecode {
    my %args = (
        Action      => undef,
        Message     => undef,
        CurrentUser => undef,
        Ticket      => undef,
        Queue       => undef,
        @_,
    );

    my $encryption = $args{Message}->head->get('X-RT-Incoming-Encryption');
    chomp $encryption;
    return unless $encryption eq "Not encrypted";

    RT::Interface::Email::Crypt::EmailErrorToSender(
        %args,
        Template  => 'Error: unencrypted message',
        Arguments => { Message  => $args{'Message'} },
    );
    $RT::Logger->warning("rejected because the message is unencrypted");
    FAILURE('rejected because the message is unencrypted');
}

1;
