refactor: use enum for secure sockets

based on barrier: 57769cf

src/lib/net/SecureListenSocket.cpp

@@ -1,5 +1,6 @@
 /*
  * Deskflow -- mouse and keyboard sharing utility
+ * SPDX-FileCopyrightText: (C) 2025 Deskflow Developers
  * SPDX-FileCopyrightText: (C) 2015 - 2016 Symless Ltd.
  * SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
  */
@@ -25,9 +26,12 @@ static const char s_certificateFileExt[] = {"pem"};
 //
 
 SecureListenSocket::SecureListenSocket(
-    IEventQueue *events, SocketMultiplexer *socketMultiplexer, IArchNetwork::EAddressFamily family
+    IEventQueue *events, SocketMultiplexer *socketMultiplexer, IArchNetwork::EAddressFamily family,
+    SecurityLevel securityLevel
 )
-    : TCPListenSocket(events, socketMultiplexer, family)
+    : TCPListenSocket(events, socketMultiplexer, family),
+      m_securityLevel{securityLevel}
+
 {
 }
 
@@ -35,7 +39,7 @@ IDataSocket *SecureListenSocket::accept()
 {
   SecureSocket *socket = NULL;
   try {
-    socket = new SecureSocket(m_events, m_socketMultiplexer, ARCH->acceptSocket(m_socket, NULL));
+    socket = new SecureSocket(m_events, m_socketMultiplexer, ARCH->acceptSocket(m_socket, NULL), m_securityLevel);
     socket->initSsl(true);
 
     if (socket != NULL) {

src/lib/net/SecureListenSocket.h

@@ -1,5 +1,6 @@
 /*
  * Deskflow -- mouse and keyboard sharing utility
+ * SPDX-FileCopyrightText: (C) 2025 Deskflow Developers
  * SPDX-FileCopyrightText: (C) 2015 - 2016 Symless Ltd.
  * SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
  */
@@ -7,6 +8,7 @@
 #pragma once
 
 #include "common/stdset.h"
+#include "net/SecurityLevel.h"
 #include "net/TCPListenSocket.h"
 
 class IEventQueue;
@@ -16,8 +18,14 @@ class IDataSocket;
 class SecureListenSocket : public TCPListenSocket
 {
 public:
-  SecureListenSocket(IEventQueue *events, SocketMultiplexer *socketMultiplexer, IArchNetwork::EAddressFamily family);
+  SecureListenSocket(
+      IEventQueue *events, SocketMultiplexer *socketMultiplexer, IArchNetwork::EAddressFamily family,
+      SecurityLevel securityLevel = SecurityLevel::PlainText
+  );
 
   // IListenSocket overrides
   virtual IDataSocket *accept();
+
+private:
+  const SecurityLevel m_securityLevel;
 };

src/lib/net/SecureSocket.cpp

@@ -51,20 +51,25 @@ struct Ssl
 };
 
 SecureSocket::SecureSocket(
-    IEventQueue *events, SocketMultiplexer *socketMultiplexer, IArchNetwork::EAddressFamily family
+    IEventQueue *events, SocketMultiplexer *socketMultiplexer, IArchNetwork::EAddressFamily family,
+    SecurityLevel securityLevel
 )
     : TCPSocket(events, socketMultiplexer, family),
       m_ssl(nullptr),
       m_secureReady(false),
-      m_fatal(false)
+      m_fatal(false),
+      m_securityLevel{securityLevel}
 {
 }
 
-SecureSocket::SecureSocket(IEventQueue *events, SocketMultiplexer *socketMultiplexer, ArchSocket socket)
+SecureSocket::SecureSocket(
+    IEventQueue *events, SocketMultiplexer *socketMultiplexer, ArchSocket socket, SecurityLevel securityLevel
+)
     : TCPSocket(events, socketMultiplexer, socket),
       m_ssl(nullptr),
       m_secureReady(false),
-      m_fatal(false)
+      m_fatal(false),
+      m_securityLevel{securityLevel}
 {
 }
 

src/lib/net/SecureSocket.h

@@ -1,11 +1,13 @@
 /*
  * Deskflow -- mouse and keyboard sharing utility
+ * SPDX-FileCopyrightText: (C) 2025 Deskflow Developers
  * SPDX-FileCopyrightText: (C) 2015 - 2016 Symless Ltd.
  * SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
  */
 
 #pragma once
 
+#include "net/SecurityLevel.h"
 #include "net/TCPSocket.h"
 #include "net/XSocket.h"
 #include <mutex>
@@ -23,8 +25,14 @@ A secure socket using SSL.
 class SecureSocket : public TCPSocket
 {
 public:
-  SecureSocket(IEventQueue *events, SocketMultiplexer *socketMultiplexer, IArchNetwork::EAddressFamily family);
+  SecureSocket(
-  SecureSocket(IEventQueue *events, SocketMultiplexer *socketMultiplexer, ArchSocket socket);
+      IEventQueue *events, SocketMultiplexer *socketMultiplexer, IArchNetwork::EAddressFamily family,
+      SecurityLevel securityLevel = SecurityLevel::Encrypted
+  );
+  SecureSocket(
+      IEventQueue *events, SocketMultiplexer *socketMultiplexer, ArchSocket socket,
+      SecurityLevel securityLevel = SecurityLevel::Encrypted
+  );
   SecureSocket(SecureSocket const &) = delete;
   SecureSocket(SecureSocket &&) = delete;
   ~SecureSocket();
@@ -84,4 +92,5 @@ private:
   Ssl *m_ssl;
   bool m_secureReady;
   bool m_fatal;
+  SecurityLevel m_securityLevel = SecurityLevel::Encrypted;
 };

src/lib/net/TCPSocketFactory.cpp

@@ -33,7 +33,7 @@ TCPSocketFactory::~TCPSocketFactory()
 IDataSocket *TCPSocketFactory::create(IArchNetwork::EAddressFamily family, SecurityLevel securityLevel) const
 {
   if (securityLevel != SecurityLevel::PlainText) {
-    SecureSocket *secureSocket = new SecureSocket(m_events, m_socketMultiplexer, family);
+    SecureSocket *secureSocket = new SecureSocket(m_events, m_socketMultiplexer, family, securityLevel);
     secureSocket->initSsl(false);
     return secureSocket;
   } else {
@@ -45,7 +45,7 @@ IListenSocket *TCPSocketFactory::createListen(IArchNetwork::EAddressFamily famil
 {
   IListenSocket *socket = NULL;
   if (securityLevel != SecurityLevel::PlainText) {
-    socket = new SecureListenSocket(m_events, m_socketMultiplexer, family);
+    socket = new SecureListenSocket(m_events, m_socketMultiplexer, family, securityLevel);
   } else {
     socket = new TCPListenSocket(m_events, m_socketMultiplexer, family);
   }