Secure settings 2

client/secure_qsettings.cpp

@@ -0,0 +1,47 @@
+#include "secure_qsettings.h"
+#include "secureformat.h"
+
+#include <QDataStream>
+
+SecureQSettings::SecureQSettings(const QString &organization, const QString &application, QObject *parent)
+    : QObject{parent},
+      m_setting(organization, application, parent)
+{
+    encrypted = m_setting.value("encrypted").toBool();
+
+    // convert settings to encrypted
+    if (! encrypted) {
+        // TODO: convert
+        // m_setting.sync();
+    }
+}
+
+QVariant SecureQSettings::value(const QString &key, const QVariant &defaultValue) const
+{
+    if (encrypted) {
+        QByteArray encryptedValue = m_setting.value(key, defaultValue).toByteArray();
+        QByteArray decryptedValue = decryptText(encryptedValue);
+
+        QDataStream ds(&decryptedValue, QIODevice::ReadOnly);
+        QVariant v;
+        ds >> v;
+        return v;
+    }
+    else {
+        return m_setting.value(key, defaultValue);
+    }
+}
+
+void SecureQSettings::setValue(const QString &key, const QVariant &value)
+{
+    QByteArray decryptedValue;
+    {
+        QDataStream ds(&decryptedValue, QIODevice::WriteOnly);
+        ds << value;
+    }
+
+    QByteArray encryptedValue = encryptText(decryptedValue);
+    m_setting.setValue(key, encryptedValue);
+}
+
+