added new PROTMESSID_LICENCE_REQUIRED message

src/protocol.cpp

@@ -166,6 +166,13 @@ MESSAGES (with connection)
     note: does not have any data -> n = 0
 
 
+- PROTMESSID_LICENCE_REQUIRED: Licence required to connect to the server
+
+    +---------------------+
+    | 1 byte licence type |
+    +---------------------+
+
+
 // #### COMPATIBILITY OLD VERSION, TO BE REMOVED ####
 - PROTMESSID_OPUS_SUPPORTED: Informs that OPUS codec is supported
 
@@ -553,6 +560,10 @@ case PROTMESSID_CHANNEL_NAME:
                 bRet = EvaluateReqNetwTranspPropsMes();
                 break;
 
+            case PROTMESSID_LICENCE_REQUIRED:
+                bRet = EvaluateLicenceRequiredMes ( vecbyMesBodyData );
+                break;
+
 // #### COMPATIBILITY OLD VERSION, TO BE REMOVED ####
 #ifdef USE_LEGACY_CELT
 case PROTMESSID_OPUS_SUPPORTED:
@@ -1323,6 +1334,42 @@ bool CProtocol::EvaluateReqNetwTranspPropsMes()
     return false; // no error
 }
 
+void CProtocol::CreateLicenceRequiredMes ( const ELicenceType eLicenceType )
+{
+    CVector<uint8_t> vecData ( 1 ); // 1 bytes of data
+    int              iPos = 0;      // init position pointer
+
+    // build data vector
+    PutValOnStream ( vecData, iPos, static_cast<uint32_t> ( eLicenceType ), 1 );
+
+    CreateAndSendMessage ( PROTMESSID_LICENCE_REQUIRED, vecData );
+}
+
+bool CProtocol::EvaluateLicenceRequiredMes ( const CVector<uint8_t>& vecData )
+{
+    int iPos = 0; // init position pointer
+
+    // check size
+    if ( vecData.Size() != 1 )
+    {
+        return true; // return error code
+    }
+
+    // extract licence type
+    const ELicenceType eLicenceType =
+        static_cast<ELicenceType> ( GetValFromStream ( vecData, iPos, 1 ) );
+
+    if ( eLicenceType != LT_CREATIVECOMMONS )
+    {
+        return true; // return error code
+    }
+
+    // invoke message action
+    emit LicenceRequired ( eLicenceType );
+
+    return false; // no error
+}
+
 void CProtocol::CreateOpusSupportedMes()
 {
     CreateAndSendMessage ( PROTMESSID_OPUS_SUPPORTED,

src/protocol.h

@@ -54,6 +54,7 @@
 #define PROTMESSID_CONN_CLIENTS_LIST          24 // channel infos for connected clients
 #define PROTMESSID_CHANNEL_INFOS              25 // set channel infos
 #define PROTMESSID_OPUS_SUPPORTED             26 // tells that OPUS codec is supported
+#define PROTMESSID_LICENCE_REQUIRED           27 // licence required
 
 // message IDs of connection less messages (CLM)
 // DEFINITION -> start at 1000, end at 1999, see IsConnectionLessMessageID
@@ -100,6 +101,7 @@ public:
     void CreateChatTextMes ( const QString strChatText );
     void CreateNetwTranspPropsMes ( const CNetworkTransportProps& NetTrProps );
     void CreateReqNetwTranspPropsMes();
+    void CreateLicenceRequiredMes ( const ELicenceType eLicenceType );
     void CreateOpusSupportedMes();
 
     void CreateCLPingMes               ( const CHostAddress& InetAddr, const int iMs );
@@ -213,6 +215,7 @@ protected:
     bool EvaluateChatTextMes          ( const CVector<uint8_t>& vecData );
     bool EvaluateNetwTranspPropsMes   ( const CVector<uint8_t>& vecData );
     bool EvaluateReqNetwTranspPropsMes();
+    bool EvaluateLicenceRequiredMes   ( const CVector<uint8_t>& vecData );
 #ifdef USE_LEGACY_CELT
     bool EvaluateOpusSupportedMes();
 #endif
@@ -269,6 +272,7 @@ signals:
     void ChatTextReceived ( QString strChatText );
     void NetTranspPropsReceived ( CNetworkTransportProps NetworkTransportProps );
     void ReqNetTranspProps();
+    void LicenceRequired ( ELicenceType eLicenceType );
 
     void CLPingReceived               ( CHostAddress           InetAddr,
                                         int                    iMs );