+
+void
+Config::set_audio_mapping (AudioMapping m)
+{
+ _audio_mapping = m;
+ changed (AUDIO_MAPPING);
+}
+
+void
+Config::set_audio_mapping_to_default ()
+{
+ DCPOMATIC_ASSERT (_audio_mapping);
+ auto const ch = _audio_mapping->output_channels ();
+ _audio_mapping = boost::none;
+ _audio_mapping = audio_mapping (ch);
+ changed (AUDIO_MAPPING);
+}
+
+
+void
+Config::add_custom_language (dcp::LanguageTag tag)
+{
+ if (find(_custom_languages.begin(), _custom_languages.end(), tag) == _custom_languages.end()) {
+ _custom_languages.push_back (tag);
+ changed ();
+ }
+}
+
+
+optional<Config::BadReason>
+Config::check_certificates () const
+{
+ optional<BadReason> bad;
+
+ for (auto const& i: _signer_chain->unordered()) {
+ if (i.has_utf8_strings()) {
+ bad = BAD_SIGNER_UTF8_STRINGS;
+ }
+ if ((i.not_after().year() - i.not_before().year()) > 15) {
+ bad = BAD_SIGNER_VALIDITY_TOO_LONG;
+ }
+ }
+
+ if (!_signer_chain->chain_valid() || !_signer_chain->private_key_valid()) {
+ bad = BAD_SIGNER_INCONSISTENT;
+ }
+
+ if (!_decryption_chain->chain_valid() || !_decryption_chain->private_key_valid()) {
+ bad = BAD_DECRYPTION_INCONSISTENT;
+ }
+
+ return bad;
+}
+
+
+void
+save_all_config_as_zip (boost::filesystem::path zip_file)
+{
+ Zipper zipper (zip_file);
+
+ auto config = Config::instance();
+ zipper.add ("config.xml", dcp::file_to_string(config->config_read_file()));
+ if (boost::filesystem::exists(config->cinemas_file())) {
+ zipper.add ("cinemas.xml", dcp::file_to_string(config->cinemas_file()));
+ }
+ if (boost::filesystem::exists(config->dkdm_recipients_file())) {
+ zipper.add ("dkdm_recipients.xml", dcp::file_to_string(config->dkdm_recipients_file()));
+ }
+
+ zipper.close ();
+}
+