src/lib/screen.cc

   1 /*
   2     Copyright (C) 2013-2020 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 #include "screen.h"
  22 #include "kdm_with_metadata.h"
  23 #include "film.h"
  24 #include "cinema.h"
  25 #include <libxml++/libxml++.h>
  26 #include <boost/algorithm/string.hpp>
  27 #include <boost/date_time/posix_time/posix_time.hpp>
  28
  29 using std::string;
  30 using std::vector;
  31 using std::list;
  32 using std::shared_ptr;
  33 using boost::optional;
  34 using namespace dcpomatic;
  35
  36 Screen::Screen (cxml::ConstNodePtr node)
  37         : KDMRecipient (node)
  38 {
  39         for (auto i: node->node_children ("TrustedDevice")) {
  40                 if (boost::algorithm::starts_with(i->content(), "-----BEGIN CERTIFICATE-----")) {
  41                         trusted_devices.push_back (TrustedDevice(dcp::Certificate(i->content())));
  42                 } else {
  43                         trusted_devices.push_back (TrustedDevice(i->content()));
  44                 }
  45         }
  46 }
  47
  48 void
  49 Screen::as_xml (xmlpp::Element* parent) const
  50 {
  51         KDMRecipient::as_xml (parent);
  52         for (auto i: trusted_devices) {
  53                 parent->add_child("TrustedDevice")->add_child_text(i.as_string());
  54         }
  55 }
  56
  57 vector<string>
  58 Screen::trusted_device_thumbprints () const
  59 {
  60         vector<string> t;
  61         for (auto i: trusted_devices) {
  62                 t.push_back (i.thumbprint());
  63         }
  64         return t;
  65 }
  66
  67
  68 KDMWithMetadataPtr
  69 kdm_for_screen (
  70         shared_ptr<const Film> film,
  71         boost::filesystem::path cpl,
  72         shared_ptr<const dcpomatic::Screen> screen,
  73         boost::posix_time::ptime valid_from,
  74         boost::posix_time::ptime valid_to,
  75         dcp::Formulation formulation,
  76         bool disable_forensic_marking_picture,
  77         optional<int> disable_forensic_marking_audio
  78         )
  79 {
  80         if (!screen->recipient) {
  81                 return KDMWithMetadataPtr();
  82         }
  83
  84         shared_ptr<const Cinema> cinema = screen->cinema;
  85         dcp::LocalTime const begin(valid_from, cinema ? cinema->utc_offset_hour() : 0, cinema ? cinema->utc_offset_minute() : 0);
  86         dcp::LocalTime const end  (valid_to,   cinema ? cinema->utc_offset_hour() : 0, cinema ? cinema->utc_offset_minute() : 0);
  87
  88         dcp::EncryptedKDM const kdm = film->make_kdm (
  89                         screen->recipient.get(),
  90                         screen->trusted_device_thumbprints(),
  91                         cpl,
  92                         begin,
  93                         end,
  94                         formulation,
  95                         disable_forensic_marking_picture,
  96                         disable_forensic_marking_audio
  97                         );
  98
  99         dcp::NameFormat::Map name_values;
 100         if (cinema) {
 101                 name_values['c'] = cinema->name;
 102         }
 103         name_values['s'] = screen->name;
 104         name_values['f'] = film->name();
 105         name_values['b'] = begin.date() + " " + begin.time_of_day(true, false);
 106         name_values['e'] = end.date() + " " + end.time_of_day(true, false);
 107         name_values['i'] = kdm.cpl_id();
 108
 109         return KDMWithMetadataPtr(new KDMWithMetadata(name_values, cinema.get(), cinema ? cinema->emails : list<string>(), kdm));
 110 }
 111