From 82739a9314a23e3b9465e24546f33448dff07ca2 Mon Sep 17 00:00:00 2001
From: CastagnaIT <gottardo.stefano.83@gmail.com>
Date: Sun, 18 Aug 2024 18:14:55 +0200
Subject: [PATCH] [ClearKey] Allow only "cenc" encryption

---
 src/decrypters/clearkey/ClearKeyDecrypter.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/decrypters/clearkey/ClearKeyDecrypter.cpp b/src/decrypters/clearkey/ClearKeyDecrypter.cpp
index 08944445c..cceaf61cc 100644
--- a/src/decrypters/clearkey/ClearKeyDecrypter.cpp
+++ b/src/decrypters/clearkey/ClearKeyDecrypter.cpp
@@ -12,6 +12,7 @@
 #include "CompKodiProps.h"
 #include "SrvBroker.h"
 #include "decrypters/Helpers.h"
+#include "utils/log.h"
 
 std::vector<std::string_view> CClearKeyDecrypter::SelectKeySystems(std::string_view keySystem)
 {
@@ -39,6 +40,12 @@ Adaptive_CencSingleSampleDecrypter* CClearKeyDecrypter::CreateSingleSampleDecryp
     bool skipSessionMessage,
     CryptoMode cryptoMode)
 {
+  if (cryptoMode != CryptoMode::AES_CTR)
+  {
+    LOG::LogF(LOGERROR, "Cannot initialize ClearKey DRM. Only \"cenc\" encryption supported.");
+    return nullptr;
+  }
+
   CClearKeyCencSingleSampleDecrypter* decrypter = nullptr;
   auto& cfgLic = CSrvBroker::GetKodiProps().GetDrmConfig(std::string(DRM::KS_CLEARKEY)).license;