add save encryption

core.cpp

@@ -1126,10 +1126,27 @@ void Core::saveConfiguration()
 
     qDebug() << "Core: Saving";
 
-    uint32_t fileSize = tox_size(tox);
+    uint32_t fileSize;
+    if (Settings::getInstance().getEncryptTox())
+        fileSize = tox_encrypted_size(tox);
+    else
+        fileSize = tox_size(tox);
+
     if (fileSize > 0 && fileSize <= INT32_MAX) {
         uint8_t *data = new uint8_t[fileSize];
+
+        if (Settings::getInstance().getEncryptTox())
+        {
+            int ret = tox_encrypted_save(tox, data, pwhash, TOX_HASH_LENGTH);
+            if (ret == -1)
+            {
+                qCritical() << "Core::saveConfiguration: encryption of save file failed!!!";
+                return;
+            }
+        }
+        else
             tox_save(tox, data);
+
         configurationFile.write(reinterpret_cast<char *>(data), fileSize);
         configurationFile.commit();
         delete[] data;
@@ -1435,13 +1452,12 @@ void Core::clearPassword()
         delete[] pwhash;
         pwhash = nullptr;
     }
-        
 }
 
 QByteArray Core::encryptData(const QByteArray& data)
 {
     if (!pwhash)
-        return;
+        return QByteArray();
     uint8_t encrypted[data.size() + TOX_PASS_ENCRYPTION_EXTRA_LENGTH];
     if (tox_pass_encrypt(data.data(), data.size(), pwhash, TOX_HASH_LENGTH, encrypted) == -1)
     {

core.h

@@ -95,6 +95,7 @@ public slots:
     void micMuteToggle(int callId);
 
     void setPassword(QString& password);
+    void clearPassword();
     bool encryptFile(const QString& path);
     QByteArray encryptData(const QByteArray& data);
 

misc/settings.cpp

@@ -430,6 +430,16 @@ void Settings::setEncryptLogs(bool newValue)
     encryptLogs = newValue;
 }
 
+bool Settings::getEncryptTox() const
+{
+    return encryptTox;
+}
+
+void Settings::setEncryptTox(bool newValue)
+{
+    encryptTox = newValue;
+}
+
 void Settings::setWidgetData(const QString& uniqueName, const QByteArray& data)
 {
     widgetSettings[uniqueName] = data;

misc/settings.h

@@ -73,6 +73,9 @@ public:
     bool getEncryptLogs() const;
     void setEncryptLogs(bool newValue);
 
+    bool getEncryptTox() const;
+    void setEncryptTox(bool newValue);
+
     QPixmap getSavedAvatar(const QString& ownerId);
     void saveAvatar(QPixmap& pic, const QString& ownerId);
 
@@ -178,6 +181,7 @@ private:
 
     bool enableLogging;
     bool encryptLogs;
+    bool encryptTox;
 
     QHash<QString, QByteArray> widgetSettings;