Improved permission checks.

core/iplugin.h

@@ -8,6 +8,7 @@
 #include <QStringList>
 #include <QIcon>
 #include <QTranslator>
+#include <QMessageBox>
 
 #include "service.h"
 #include "igridform.h"
@@ -51,6 +52,13 @@ public:
     virtual void init(const QJsonObject &metaData) = 0;
 
     virtual QWidget *ui() {
+        PermissionEvaluator permEv;
+        if (!permEv.hasPermission(pluginId(), PERM_READ))
+        {
+            QMessageBox::critical(m_ui, QObject::tr("Permission denied"), QObject::tr("You don't have permission to open this plugin."));
+            return NULL;
+        }
+
         IGridForm *form = qobject_cast<IGridForm*>(m_ui);
         bool filled = true;