Implementation of basic permission checks.

core/autoform.h

@@ -41,6 +41,10 @@ public slots:
                 QMessageBox::critical(this, "Database error", msg.toStdString().c_str());
                 m_saved = false;
             });
+            this->connect(service(), &IService::permissionDenied, [this](QString permission) {
+                QMessageBox::critical(this, "Permission denied", permission.toStdString().c_str());
+                m_saved = false;
+            });
             this->connect(service(), &IService::dataChanged, [this]() {
                 m_saved = true;
             });

core/autotablemodel.h

@@ -155,7 +155,9 @@ public:
 
     void setData(QList<QSharedPointer<T> > list)
     {
+        beginResetModel();
         m_list = list;
+        endResetModel();
     }
 
 protected:

core/core.pro

@@ -50,7 +50,8 @@ SOURCES += \
     data/system.cpp \
     settings/globalsettings.cpp \
     settingsform.cpp \
-    settings/globalsettingsform.cpp
+    settings/globalsettingsform.cpp \
+    permissionevaluator.cpp
 
 HEADERS += core.h\
         core_global.h \
@@ -100,7 +101,8 @@ HEADERS += core.h\
     settings/globalsettings.h \
     settingsform.h \
     settings/globalsettingsform.h \
-    formbinder.h
+    formbinder.h \
+    permissionevaluator.h
 
 unix {
     target.path = /usr/lib

core/imetadataplugin.cpp

@@ -60,6 +60,11 @@ void IMetaDataPlugin::init(const QJsonObject &metaData)
     {
         pluginUi->setPluginId(pluginId());
     }
+
+    if (m_service != NULL)
+    {
+        m_service->setPluginId(pluginId());
+    }
 }
 
 void IMetaDataPlugin::parseMetaData(const QJsonObject &metaData)

core/iservice.cpp

@@ -2,11 +2,14 @@
 
 IService::IService(QObject *parent) : QObject(parent)
 {
-
 }
 
 IService::~IService()
 {
+}
 
+void IService::setPluginId(const QString &pluginId)
+{
+    m_pluginId = pluginId;
 }
 

core/iservice.h

@@ -14,6 +14,8 @@ public:
     explicit IService(QObject *parent = 0);
     virtual ~IService();
 
+    void setPluginId(const QString &pluginId);
+
 signals:
     void dbError(QString errMsg);
     void dbErrorRead(QString errMsg);
@@ -23,8 +25,12 @@ signals:
     void dataChanged();
     void updateDenied();
     void readDenied();
+    void permissionDenied(QString permission);
 
 public slots:
+
+protected:
+    QString m_pluginId;
 };
 
 #endif // ISERVICE_H

core/permissionevaluator.cpp

@@ -0,0 +1,43 @@
+#include "permissionevaluator.h"
+
+#include <QSharedPointer>
+
+#include "data/core-data.h"
+#include "context.h"
+
+PermissionEvaluator::PermissionEvaluator(QObject *parent)
+    :QObject(parent)
+{
+}
+
+PermissionEvaluator::~PermissionEvaluator()
+{   
+}
+
+bool PermissionEvaluator::hasPermission(const QString &pluginId, const QString &permission)
+{
+    if (Context::instance().currentUser()->isAdmin())
+    {
+        return true;
+    }
+
+    bool ret;
+    QList<QSharedPointer<Role> > roles = Context::instance().currentUser()->listRoles();
+
+    ret = std::find_if(ALL(roles), [&pluginId, &permission](QSharedPointer<Role> role) -> bool {
+        foreach (QSharedPointer<Permission> perm, role->listPermissions()) {
+            if (perm->pluginId() == pluginId && perm->permissionName() == permission) {
+                return true;
+            }
+        }
+        return false;
+    }) != roles.end();
+
+    if (!ret)
+    {
+        emit permissionDenied(permission);
+    }
+
+    return ret;
+}
+

core/permissionevaluator.h

@@ -0,0 +1,23 @@
+#ifndef PERMISSIONEVALUATOR_H
+#define PERMISSIONEVALUATOR_H
+
+#include <QObject>
+#include <QString>
+
+#include "core_global.h"
+
+class CORESHARED_EXPORT PermissionEvaluator : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit PermissionEvaluator(QObject *parent = NULL);
+    ~PermissionEvaluator();
+
+    bool hasPermission(const QString &pluginId, const QString &permission);
+
+signals:
+    void permissionDenied(QString permission);
+};
+
+#endif // PERMISSIONEVALUATOR_H

core/service.h

@@ -13,6 +13,7 @@
 #include "core_global.h"
 #include "context.h"
 #include "iservice.h"
+#include "permissionevaluator.h"
 
 #include "transaction.h"
 
@@ -27,12 +28,17 @@ public:
     }
 
     QList<QSharedPointer<T> > all(const QString &where = "") {
+        QList<QSharedPointer<T> > ret;
+
+        if (!checkPermission(PERM_READ)) {
+            return ret;
+        }
+
         odb::database *db = Context::instance().db();
 
         Q_ASSERT(db);
 
         Transaction tx;
-        QList<QSharedPointer<T> > ret;
 
         try
         {
@@ -62,6 +68,10 @@ public:
     }
 
     void save(QSharedPointer<T> entity) {
+        if (!checkPermission(PERM_ADD)) {
+            return;
+        }
+
         odb::database *db = Context::instance().db();
 
         Q_ASSERT(db);
@@ -84,6 +94,10 @@ public:
     }
 
     void update(QSharedPointer<T> entity) {
+        if (!checkPermission(PERM_EDIT)) {
+            return;
+        }
+
         odb::database *db = Context::instance().db();
 
         Q_ASSERT(db);
@@ -106,12 +120,17 @@ public:
     }
 
     QSharedPointer<T> loadById(int id) {
+        QSharedPointer<T> entity;
+
+        if (!checkPermission(PERM_READ)) {
+            return entity;
+        }
+
         odb::database *db = Context::instance().db();
 
         Q_ASSERT(db);
 
         Transaction tx;
-        QSharedPointer<T> entity;
 
         try
         {
@@ -137,6 +156,10 @@ public:
     }
 
     void erase(QSharedPointer<T> entity) {
+        if (!checkPermission(PERM_DELETE)) {
+            return;
+        }
+
         odb::database *db = Context::instance().db();
 
         Q_ASSERT(db);
@@ -155,12 +178,18 @@ public:
         }
     }
 
-    void setPluginId(const QString &pluginId) {
-        m_pluginId = pluginId;
-    }
+protected:
+    bool checkPermission(const QString &permission) {
+        if (!m_pluginId.isEmpty()) {
+            PermissionEvaluator ev;
+            if (!ev.hasPermission(m_pluginId, permission)) {
+                emit permissionDenied(permission);
+                return false;
+            }
+        }
 
-private:
-    QString m_pluginId;
+        return true;
+    }
 };
 
 #endif // SERVICE_H