From d9b4e65b92e28f9126fac7660d7aba97fc1ca4ad Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Mon, 5 Feb 2018 00:40:51 +0000
Subject: Throw an exception if we try to make KDMs for an unencrypted project
 (#1188).

---
 src/lib/film.cc | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/lib/film.cc b/src/lib/film.cc
index 386f456b5..2b045f5c4 100644
--- a/src/lib/film.cc
+++ b/src/lib/film.cc
@@ -1218,6 +1218,10 @@ Film::make_kdm (
 	dcp::Formulation formulation
 	) const
 {
+	if (!_encrypted) {
+		throw runtime_error (_("Cannot make a KDM as this project is not encrypted."));
+	}
+
 	shared_ptr<const dcp::CPL> cpl (new dcp::CPL (cpl_file));
 	shared_ptr<const dcp::CertificateChain> signer = Config::instance()->signer_chain ();
 	if (!signer->valid ()) {
-- 
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