src/lib/dcp.cc

   1 /*
   2     Copyright (C) 2014-2018 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 "dcp.h"
  22 #include "config.h"
  23 #include "film.h"
  24 #include "log.h"
  25 #include "dcpomatic_log.h"
  26 #include "compose.hpp"
  27 #include "dcp_content.h"
  28 #include <dcp/dcp.h>
  29 #include <dcp/decrypted_kdm.h>
  30 #include <dcp/exceptions.h>
  31 #include <boost/foreach.hpp>
  32
  33 #include "i18n.h"
  34
  35 using std::list;
  36 using std::string;
  37 using boost::shared_ptr;
  38
  39 /** Find all the CPLs in our directories, cross-add assets and return the CPLs */
  40 list<shared_ptr<dcp::CPL> >
  41 DCP::cpls () const
  42 {
  43         list<shared_ptr<dcp::DCP> > dcps;
  44         list<shared_ptr<dcp::CPL> > cpls;
  45
  46         LOG_GENERAL ("Reading %1 DCP directories", _dcp_content->directories().size());
  47         BOOST_FOREACH (boost::filesystem::path i, _dcp_content->directories()) {
  48                 shared_ptr<dcp::DCP> dcp (new dcp::DCP (i));
  49                 dcp->read (false, 0, true);
  50                 dcps.push_back (dcp);
  51                 LOG_GENERAL ("Reading DCP %1: %2 CPLs", i.string(), dcp->cpls().size());
  52                 BOOST_FOREACH (shared_ptr<dcp::CPL> i, dcp->cpls()) {
  53                         cpls.push_back (i);
  54                 }
  55         }
  56
  57         BOOST_FOREACH (shared_ptr<dcp::DCP> i, dcps) {
  58                 BOOST_FOREACH (shared_ptr<dcp::DCP> j, dcps) {
  59                         if (i != j) {
  60                                 i->resolve_refs (j->assets (true));
  61                         }
  62                 }
  63         }
  64
  65         if (_dcp_content->kdm ()) {
  66                 BOOST_FOREACH (shared_ptr<dcp::DCP> i, dcps) {
  67                         try {
  68                                 i->add (dcp::DecryptedKDM (_dcp_content->kdm().get(), Config::instance()->decryption_chain()->key().get ()));
  69                         } catch (dcp::KDMDecryptionError& e) {
  70                                 /* Flesh out the error a bit */
  71                                 string const kdm_subject_name = _dcp_content->kdm()->recipient_x509_subject_name();
  72                                 bool on_chain = false;
  73                                 shared_ptr<const dcp::CertificateChain> dc = Config::instance()->decryption_chain();
  74                                 BOOST_FOREACH (dcp::Certificate i, dc->root_to_leaf()) {
  75                                         if (i.subject() == kdm_subject_name) {
  76                                                 on_chain = true;
  77                                         }
  78                                 }
  79                                 if (!on_chain) {
  80                                         throw KDMError (_("KDM was not made for DCP-o-matic's decryption certificate."), e.what());
  81                                 } else if (on_chain && kdm_subject_name != dc->leaf().subject()) {
  82                                         throw KDMError (_("KDM was made for DCP-o-matic but not for its leaf certificate."), e.what());
  83                                 }
  84                         }
  85                 }
  86         }
  87
  88         return cpls;
  89 }