Warn/error on making KDMs using recipient certs whose validity periods

lie outside those of the KDMs (#2423).

1 files changed, 53 insertions, 0 deletions

diff --git a/src/lib/kdm_util.h b/src/lib/kdm_util.h
new file mode 100644
index 000000000..4baa0c611
--- /dev/null
+++ b/src/lib/kdm_util.h
@@ -0,0 +1,53 @@
+/*
+    Copyright (C) 2023 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    DCP-o-matic is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#ifndef DCPOMATIC_KDM_UTIL_H
+#define DCPOMATIC_KDM_UTIL_H
+
+
+#include <utility>
+#include <dcp/local_time.h>
+
+
+namespace dcp {
+	class Certificate;
+}
+
+
+enum class KDMCertificatePeriod {
+	KDM_WITHIN_CERTIFICATE,
+	KDM_OVERLAPS_CERTIFICATE,
+	KDM_OUTSIDE_CERTIFICATE
+};
+
+
+/** @param recipient Some KDM recipient certificate.
+ *  @param kdm_from Proposed KDM start time.
+ *  @param kdm_to Proposed KDM end time.
+ *  @return Relationship between certificate and KDM validity periods.
+ */
+
+KDMCertificatePeriod
+check_kdm_and_certificate_validity_periods(dcp::Certificate const& recipient, dcp::LocalTime kdm_from, dcp::LocalTime kdm_to);
+
+
+#endif
+