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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This Source Code Form is "Incompatible With Secondary Licenses", as
# defined by the Mozilla Public License, v. 2.0.
package Bugzilla::Extension::SecureMail::TCT;
use 5.10.1;
use Moo;
use Bugzilla::DaemonControl qw( on_finish on_exception );
use File::Temp;
use Future::Utils qw(call);
use Future;
use IO::Async::Process;
has 'public_key' => (is => 'ro', required => 1);
has 'public_key_file' => (is => 'lazy');
has 'is_valid' => (is => 'lazy');
has 'command' => (is => 'ro', default => 'tct');
sub _build_public_key_file {
my ($self) = @_;
my $fh = File::Temp->new(SUFFIX => '.pubkey');
$fh->print($self->public_key);
$fh->close;
return $fh;
}
sub _build_is_valid {
my ($self) = @_;
my $loop = IO::Async::Loop->new;
my $exit_f = $loop->new_future;
my ($stderr, $stdout);
my $process = IO::Async::Process->new(
command => [$self->command, 'check', '-k', $self->public_key_file],
stderr => {into => \$stderr,},
stdout => {into => \$stdout,},
on_finish => on_finish($exit_f),
on_exception => on_exception($self->command, $exit_f),
);
$loop->add($process);
return $exit_f->then(sub {
my ($rv) = @_;
Future->wrap($rv == 0);
});
}
sub encrypt {
my ($self, $input, $comment) = @_;
$self->is_valid->then(sub {
my ($is_valid) = @_;
call {
die 'invalid public key!' unless $is_valid;
my $output;
my $loop = IO::Async::Loop->new;
my $exit_f = $loop->new_future;
my @command = ($self->command, 'encrypt', '-k', $self->public_key_file);
push @command, '--comment', $comment if $comment;
my $process = IO::Async::Process->new(
command => \@command,
stdin => {from => $input,},
stdout => {into => \$output,},
on_finish => on_finish($exit_f),
on_exception => on_exception($self->command, $exit_f),
);
$loop->add($process);
return $exit_f->then(sub { Future->wrap($output) });
}
});
}
1;
__END__
=head1 NAME
Bugzilla::Extension::SecureMail::TCT - An interface to the tct program
=head1 SYNOPSIS
my $key = <<'PUBLIC_KEY';
-----BEGIN PGP PUBLIC KEY BLOCK-----
mQINBFakJSsBEACbDwHztgZaVhIb6f4PN0KbXv5BEciqKNbdVLgWQJyqgEMIwTF7
...
o858gRM=
=t9lA
-----END PGP PUBLIC KEY BLOCK-----
PUBLIC_KEY
my $tct = Bugzilla::Extension::SecureMail::TCT->new(public_key => $key);
my $encrypted = $tct->encrypt("message", "comment goes here")->get;
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