src/lib/screen.cc

   1 /*
   2     Copyright (C) 2013-2021 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     DCP-o-matic is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21
  22 #include "cinema.h"
  23 #include "cinema_list.h"
  24 #include "config.h"
  25 #include "film.h"
  26 #include "kdm_util.h"
  27 #include "kdm_with_metadata.h"
  28 #include "screen.h"
  29 #include <libxml++/libxml++.h>
  30 #include <boost/algorithm/string.hpp>
  31 #include <boost/date_time/posix_time/posix_time.hpp>
  32
  33
  34 using std::list;
  35 using std::make_shared;
  36 using std::shared_ptr;
  37 using std::string;
  38 using std::vector;
  39 using boost::optional;
  40 using namespace dcpomatic;
  41
  42
  43 vector<string>
  44 Screen::trusted_device_thumbprints () const
  45 {
  46         vector<string> t;
  47         for (auto i: trusted_devices) {
  48                 t.push_back (i.thumbprint());
  49         }
  50         return t;
  51 }
  52
  53
  54 KDMWithMetadataPtr
  55 kdm_for_screen (
  56         std::function<dcp::DecryptedKDM (dcp::LocalTime, dcp::LocalTime)> make_kdm,
  57         CinemaID cinema_id,
  58         Cinema const& cinema,
  59         Screen const& screen,
  60         dcp::LocalTime valid_from,
  61         dcp::LocalTime valid_to,
  62         dcp::Formulation formulation,
  63         bool disable_forensic_marking_picture,
  64         optional<int> disable_forensic_marking_audio,
  65         vector<KDMCertificatePeriod>& period_checks
  66         )
  67 {
  68         if (!screen.recipient) {
  69                 return {};
  70         }
  71
  72         period_checks.push_back(check_kdm_and_certificate_validity_periods(cinema.name, screen.name, screen.recipient.get(), valid_from, valid_to));
  73
  74         auto signer = Config::instance()->signer_chain();
  75         if (!signer->valid()) {
  76                 throw InvalidSignerError();
  77         }
  78
  79         auto kdm = make_kdm(valid_from, valid_to).encrypt(
  80                 signer, screen.recipient.get(), screen.trusted_device_thumbprints(), formulation, disable_forensic_marking_picture, disable_forensic_marking_audio
  81                 );
  82
  83         dcp::NameFormat::Map name_values;
  84         name_values['c'] = cinema.name;
  85         name_values['s'] = screen.name;
  86         name_values['f'] = kdm.content_title_text();
  87         name_values['b'] = valid_from.date() + " " + valid_from.time_of_day(true, false);
  88         name_values['e'] = valid_to.date() + " " + valid_to.time_of_day(true, false);
  89         name_values['i'] = kdm.cpl_id();
  90
  91         return make_shared<KDMWithMetadata>(name_values, cinema_id, cinema.emails, kdm);
  92 }
  93