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# Copyright © 2021-2022 Guillem Jover <guillem@debian.org> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <https://www.gnu.org/licenses/>. package Dpkg::OpenPGP::Backend::SOP; use strict; use warnings; our $VERSION = '0.01'; use POSIX qw(:sys_wait_h); use Dpkg::ErrorHandling; use Dpkg::IPC; use Dpkg::OpenPGP::ErrorCodes; use parent qw(Dpkg::OpenPGP::Backend); # - Once "gosop" implements inline-verify and inline-sign, add as alternative. # Ref: https://github.com/ProtonMail/gosop/issues/6 # - Once "hop" implements the new SOP draft, add as alternative. # Ref: https://salsa.debian.org/clint/hopenpgp-tools/-/issues/4 # - Once the SOP MR !23 is finalized and merged, implement a way to select # whether the SOP instance supports the expected draft. # Ref: https://gitlab.com/dkg/openpgp-stateless-cli/-/merge_requests/23 # - Once the SOP issue #42 is resolved we can perhaps remove the alternative # dependencies and commands to check? # Ref: https://gitlab.com/dkg/openpgp-stateless-cli/-/issues/42 sub DEFAULT_CMD { return [ qw(sqop pgpainless-cli) ]; } sub _sop_exec { my ($self, $io, @exec) = @_; return OPENPGP_MISSING_CMD unless $self->{cmd}; $io->{out} //= '/dev/null'; my $stderr; spawn(exec => [ $self->{cmd}, @exec ], wait_child => 1, nocheck => 1, timeout => 10, from_file => $io->{in}, to_file => $io->{out}, error_to_string => \$stderr); if (WIFEXITED($?)) { my $status = WEXITSTATUS($?); print { *STDERR } "$stderr" if $status; return $status; } else { subprocerr("$self->{cmd} @exec"); } } sub armor { my ($self, $type, $in, $out) = @_; # We ignore the $type, and let "sop" handle this automatically. return $self->_sop_exec({ in => $in, out => $out }, 'armor'); } sub dearmor { my ($self, $type, $in, $out) = @_; # We ignore the $type, and let "sop" handle this automatically. return $self->_sop_exec({ in => $in, out => $out }, 'dearmor'); } sub inline_verify { my ($self, $inlinesigned, $data, @certs) = @_; return $self->_sop_exec({ in => $inlinesigned, out => $data }, 'inline-verify', @certs); } sub verify { my ($self, $data, $sig, @certs) = @_; return $self->_sop_exec({ in => $data }, 'verify', $sig, @certs); } sub inline_sign { my ($self, $data, $inlinesigned, $key) = @_; return OPENPGP_NEEDS_KEYSTORE if $key->needs_keystore(); return $self->_sop_exec({ in => $data, out => $inlinesigned }, qw(inline-sign --as clearsigned --), $key->handle); } 1;