From 7b5eced67a35bf5bb5bfa131e8926db6081e5734 Mon Sep 17 00:00:00 2001
From: CastagnaIT <gottardo.stefano.83@gmail.com>
Date: Tue, 30 Jul 2024 15:48:49 +0200
Subject: [PATCH] Replaced deprecated sprintf with snprintf

---
 lib/cdm/cdm/media/cdm/cdm_adapter.cc |  2 +-
 src/common/SegTemplate.cpp           |  4 ++--
 src/test/TestUtils.cpp               | 21 +++++++++++++++++++++
 src/utils/DigestMD5Utils.cpp         |  4 +++-
 src/utils/StringUtils.cpp            |  4 ++--
 5 files changed, 29 insertions(+), 6 deletions(-)

diff --git a/lib/cdm/cdm/media/cdm/cdm_adapter.cc b/lib/cdm/cdm/media/cdm/cdm_adapter.cc
index 0d5e961fc..22f872257 100644
--- a/lib/cdm/cdm/media/cdm/cdm_adapter.cc
+++ b/lib/cdm/cdm/media/cdm/cdm_adapter.cc
@@ -623,7 +623,7 @@ void CdmAdapter::OnSessionKeysChange(const char* session_id,
     char buffer[128];
     char* bufferPtr{buffer};
     for (uint32_t j{0}; j < keys_info[i].key_id_size; ++j)
-      bufferPtr += sprintf(bufferPtr, "%02X", (int)keys_info[i].key_id[j]);
+      bufferPtr += std::snprintf(bufferPtr, 3, "%02X", (int)keys_info[i].key_id[j]);
     LOG::Log(LOGDEBUG, "%s: Sessionkey %s status: %d syscode: %u", __func__, buffer,
                  keys_info[i].status, keys_info[i].system_code);
 
diff --git a/src/common/SegTemplate.cpp b/src/common/SegTemplate.cpp
index 5cc65e375..dea1b6ec0 100644
--- a/src/common/SegTemplate.cpp
+++ b/src/common/SegTemplate.cpp
@@ -13,7 +13,7 @@
 
 #include "kodi/tools/StringUtils.h"
 
-#include <cstdio> // sprintf
+#include <cstdio> // snprintf
 
 using namespace PLAYLIST;
 using namespace UTILS;
@@ -198,7 +198,7 @@ std::string PLAYLIST::CSegmentTemplate::FormatIdentifier(std::string_view identi
   }
 
   char substitution[128];
-  if (std::sprintf(substitution, formatTag.c_str(), value) > 0)
+  if (std::snprintf(substitution, 128, formatTag.c_str(), value) > 0)
     return substitution;
   else
     LOG::LogF(LOGERROR, "Cannot convert value \"%llu\" with \"%s\" format tag", value,
diff --git a/src/test/TestUtils.cpp b/src/test/TestUtils.cpp
index 3607898e9..f536fd392 100644
--- a/src/test/TestUtils.cpp
+++ b/src/test/TestUtils.cpp
@@ -10,6 +10,8 @@
 
 #include "../common/AdaptiveTreeFactory.h"
 #include "../common/SegTemplate.h"
+#include "../utils/DigestMD5Utils.h"
+#include "../utils/StringUtils.h"
 #include "../utils/UrlUtils.h"
 #include "../utils/XMLUtils.h"
 
@@ -266,3 +268,22 @@ TEST_F(UtilsTest, XMLDateTimeConversions)
 
   EXPECT_EQ(XML::ParseDate("2024-05-07T17:00:21.989+0200"), 1715101221.989);
 }
+
+TEST_F(UtilsTest, MD5HashTest)
+{
+  std::string strTest = "Test";
+  DIGEST::MD5 md5;
+  md5.Update(strTest.c_str(), static_cast<uint32_t>(strTest.size()));
+  md5.Finalize();
+  
+  EXPECT_EQ(md5.HexDigest(), "0cbc6611f5540bd0809a388dc95a615b");
+}
+
+TEST_F(UtilsTest, UrlEncodeDecode)
+{
+  const std::string strTest = "abc123-._!()~&%\xC3\xA8\xC3\xB9"; // abc123-._!()~&%ищ
+  std::string encoded = STRING::URLEncode(strTest);
+
+  EXPECT_EQ(encoded, "abc123-._!()~%26%25%C3%A8%C3%B9");
+  EXPECT_EQ(STRING::URLDecode(encoded), strTest);
+}
diff --git a/src/utils/DigestMD5Utils.cpp b/src/utils/DigestMD5Utils.cpp
index 1ead6ee97..f410832ad 100644
--- a/src/utils/DigestMD5Utils.cpp
+++ b/src/utils/DigestMD5Utils.cpp
@@ -255,7 +255,9 @@ std::string UTILS::DIGEST::MD5::HexDigest() const
 
   char buf[33];
   for (int i = 0; i < 16; i++)
-    sprintf(buf + i * 2, "%02x", m_digest[i]);
+  {
+    std::snprintf(buf + i * 2, 3, "%02x", m_digest[i]);
+  }
   buf[32] = 0;
 
   return std::string(buf);
diff --git a/src/utils/StringUtils.cpp b/src/utils/StringUtils.cpp
index 20494a921..c051dc63f 100644
--- a/src/utils/StringUtils.cpp
+++ b/src/utils/StringUtils.cpp
@@ -150,8 +150,8 @@ std::string UTILS::STRING::URLEncode(std::string_view strURLData)
     else
     {
       result.append("%");
-      char buf[3];
-      sprintf(buf, "%.2X", c);
+      char buf[4]; // 3 chars + null
+      std::snprintf(buf, 4, "%.2X", static_cast<unsigned char>(c));
       result.append(buf);
     }
   }