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/foreach.hpp>
  27 #include <boost/algorithm/string.hpp>
  28 #include <boost/date_time/posix_time/posix_time.hpp>
  29
  30 using std::string;
  31 using std::vector;
  32 using boost::shared_ptr;
  33 using boost::optional;
  34 using namespace dcpomatic;
  35
  36 Screen::Screen (cxml::ConstNodePtr node)
  37         : name (node->string_child("Name"))
  38         , notes (node->optional_string_child("Notes").get_value_or (""))
  39 {
  40         if (node->optional_string_child ("Certificate")) {
  41                 recipient = dcp::Certificate (node->string_child ("Certificate"));
  42         } else if (node->optional_string_child ("Recipient")) {
  43                 recipient = dcp::Certificate (node->string_child ("Recipient"));
  44         }
  45
  46         BOOST_FOREACH (cxml::ConstNodePtr i, node->node_children ("TrustedDevice")) {
  47                 if (boost::algorithm::starts_with(i->content(), "-----BEGIN CERTIFICATE-----")) {
  48                         trusted_devices.push_back (TrustedDevice(dcp::Certificate(i->content())));
  49                 } else {
  50                         trusted_devices.push_back (TrustedDevice(i->content()));
  51                 }
  52         }
  53 }
  54
  55 void
  56 Screen::as_xml (xmlpp::Element* parent) const
  57 {
  58         parent->add_child("Name")->add_child_text (name);
  59         if (recipient) {
  60                 parent->add_child("Recipient")->add_child_text (recipient->certificate (true));
  61         }
  62
  63         parent->add_child("Notes")->add_child_text (notes);
  64
  65         BOOST_FOREACH (TrustedDevice i, trusted_devices) {
  66                 parent->add_child("TrustedDevice")->add_child_text(i.as_string());
  67         }
  68 }
  69
  70 vector<string>
  71 Screen::trusted_device_thumbprints () const
  72 {
  73         vector<string> t;
  74         BOOST_FOREACH (TrustedDevice i, trusted_devices) {
  75                 t.push_back (i.thumbprint());
  76         }
  77         return t;
  78 }
  79
  80
  81 KDMWithMetadataPtr
  82 kdm_for_screen (
  83         shared_ptr<const Film> film,
  84         boost::filesystem::path cpl,
  85         shared_ptr<const dcpomatic::Screen> screen,
  86         boost::posix_time::ptime valid_from,
  87         boost::posix_time::ptime valid_to,
  88         dcp::Formulation formulation,
  89         bool disable_forensic_marking_picture,
  90         optional<int> disable_forensic_marking_audio
  91         )
  92 {
  93         if (!screen->recipient) {
  94                 return KDMWithMetadataPtr();
  95         }
  96
  97         shared_ptr<const Cinema> cinema = screen->cinema;
  98         dcp::LocalTime const begin(valid_from, cinema ? cinema->utc_offset_hour() : 0, cinema ? cinema->utc_offset_minute() : 0);
  99         dcp::LocalTime const end  (valid_to,   cinema ? cinema->utc_offset_hour() : 0, cinema ? cinema->utc_offset_minute() : 0);
 100
 101         dcp::EncryptedKDM const kdm = film->make_kdm (
 102                         screen->recipient.get(),
 103                         screen->trusted_device_thumbprints(),
 104                         cpl,
 105                         begin,
 106                         end,
 107                         formulation,
 108                         disable_forensic_marking_picture,
 109                         disable_forensic_marking_audio
 110                         );
 111
 112         dcp::NameFormat::Map name_values;
 113         if (cinema) {
 114                 name_values['c'] = cinema->name;
 115         }
 116         name_values['s'] = screen->name;
 117         name_values['f'] = film->name();
 118         name_values['b'] = begin.date() + " " + begin.time_of_day(true, false);
 119         name_values['e'] = end.date() + " " + end.time_of_day(true, false);
 120         name_values['i'] = kdm.cpl_id();
 121
 122         return KDMWithMetadataPtr(new DCPKDMWithMetadata(name_values, cinema, kdm));
 123 }
 124