Read-Only Configuration-Database support (#1046)

include/api/API.h

@@ -231,7 +231,7 @@ protected:
     /// @brief Save settings object. Requires ADMIN ACCESS
     /// @param data  The data object
     ///
-    void saveSettings(const QJsonObject &data);
+	bool saveSettings(const QJsonObject &data);
 
     ///
     /// @brief Test if we are authorized to use the interface

include/db/AuthTable.h

@@ -16,9 +16,10 @@ class AuthTable : public DBManager
 
 public:
 	/// construct wrapper with auth table
-	AuthTable(const QString& rootPath = "", QObject* parent = nullptr)
+	AuthTable(const QString& rootPath = "", QObject* parent = nullptr, bool readonlyMode = false)
 		: DBManager(parent)
 	{
+		setReadonlyMode(readonlyMode);
 		if(!rootPath.isEmpty()){
 			// Init Hyperion database usage
 			setRootPath(rootPath);

include/db/DBManager.h

@@ -119,6 +119,13 @@ public:
 	///
 	bool deleteTable(const QString& table) const;
 
+	///
+	/// @brief Sets a table in read-only mode.
+	/// Updates will not written to the table
+	/// @param[in]  readOnly True read-only, false - read/write
+	///
+	void setReadonlyMode(bool readOnly) { _readonlyMode = readOnly; };
+
 private:
 
 	Logger* _log;
@@ -127,6 +134,8 @@ private:
 	/// table in database
 	QString _table;
 
+	bool _readonlyMode;
+
 	/// addBindValue to query given by QVariantList
 	void doAddBindValue(QSqlQuery& query, const QVariantList& variants) const;
 };

include/db/InstanceTable.h

@@ -14,9 +14,11 @@ class InstanceTable : public DBManager
 {
 
 public:
-	InstanceTable(const QString& rootPath, QObject* parent = nullptr)
+	InstanceTable(const QString& rootPath, QObject* parent = nullptr, bool readonlyMode = false)
 		: DBManager(parent)
 	{
+
+		setReadonlyMode(readonlyMode);
 		// Init Hyperion database usage
 		setRootPath(rootPath);
 		setDatabaseName("hyperion");

include/db/MetaTable.h

@@ -17,9 +17,11 @@ class MetaTable : public DBManager
 
 public:
 	/// construct wrapper with plugins table and columns
-	MetaTable(QObject* parent = nullptr)
+	MetaTable(QObject* parent = nullptr, bool readonlyMode = false)
 		: DBManager(parent)
 	{
+		setReadonlyMode(readonlyMode);
+
 		setTable("meta");
 		createTable(QStringList()<<"uuid TEXT"<<"created_at TEXT");
 	};

include/hyperion/AuthManager.h

@@ -21,7 +21,7 @@ class AuthManager : public QObject
 private:
 	friend class HyperionDaemon;
 	/// constructor is private, can be called from HyperionDaemon
-	AuthManager(QObject *parent = 0);
+	AuthManager(QObject *parent = 0, bool readonlyMode = false);
 
 public:
 	struct AuthDefinition

include/hyperion/Hyperion.h

@@ -98,6 +98,8 @@ public:
 	///
 	QString getActiveDeviceType() const;
 
+	bool getReadOnlyMode() {return _readOnlyMode; };
+
 public slots:
 
 	///
@@ -484,7 +486,7 @@ private:
 	/// @brief Constructs the Hyperion instance, just accessible for HyperionIManager
 	/// @param  instance  The instance index
 	///
-	Hyperion(quint8 instance);
+	Hyperion(quint8 instance, bool readonlyMode = false);
 
 	/// instance index
 	const quint8 _instIndex;
@@ -541,4 +543,6 @@ private:
 
 	/// Boblight instance
 	BoblightServer* _boblightServer;
+
+	bool _readOnlyMode;
 };

include/hyperion/HyperionIManager.h

@@ -169,7 +169,7 @@ private:
 	/// @brief Construct the Manager
 	/// @param The root path of all userdata
 	///
-	HyperionIManager(const QString& rootPath, QObject* parent = nullptr);
+	HyperionIManager(const QString& rootPath, QObject* parent = nullptr, bool readonlyMode = false);
 
 	///
 	/// @brief Start all instances that are marked as enabled in db. Non blocking
@@ -193,6 +193,9 @@ private:
 	const QString _rootPath;
 	QMap<quint8, Hyperion*> _runningInstances;
 	QList<quint8> _startQueue;
+
+	bool _readonlyMode;
+
 	/// All pending requests
 	QMap<quint8, PendingRequests> _pendingRequests;
 };

include/hyperion/SettingsManager.h

@@ -21,7 +21,7 @@ public:
 	/// @params  instance   Instance index of HyperionInstanceManager
 	/// @params  parent    The parent hyperion instance
 	///
-	SettingsManager(quint8 instance, QObject* parent = nullptr);
+	SettingsManager(quint8 instance, QObject* parent = nullptr, bool readonlyMode = false);
 
 	///
 	/// @brief Save a complete json config
@@ -75,4 +75,6 @@ private:
 
 	/// the current config of this instance
 	QJsonObject _qconfig;
+
+	bool	_readonlyMode;
 };