- public:
- Storage() {};
- virtual ~Storage() {};
-
- //! Initialize the static parts of the storage class
- /** This is called by the core before any other method of the storage backend is used.
- * This should be used to perform any static initialization that might be necessary.
- * DO NOT use this for creating database connection or similar stuff, since init() might be
- * called even if the storage backend is never be actually used (because no user selected it).
- * For anything like this, the constructor (which is called if and when we actually create an instance
- * of the storage backend) is the right place.
- */
- static void init() {};
-
- /* General */
-
- //! Check if the storage type is available.
- /** A storage subclass should return true if it can be successfully used, i.e. if all
- * prerequisites are in place (e.g. we have an appropriate DB driver etc.).
- * \return True if and only if the storage class can be successfully used.
- */
- static bool isAvailable() { return false; }
-
- //! Returns the display name of the storage backend
- /** \return A string that can be used by the GUI to describe the storage backend */
- static QString displayName() { return ""; }
-
- // TODO: Add functions for configuring the backlog handling, i.e. defining auto-cleanup settings etc
-
- /* User handling */
-
- //! Add a new core user to the storage.
- /** \param user The username of the new user
- * \param password The cleartext password for the new user
- * \return The new user's UserId
- */
- virtual UserId addUser(const QString &user, const QString &password) = 0;
-
- //! Update a core user's password.
- /** \param user The user's id
- * \param password The user's new password
- */
- virtual void updateUser(UserId user, const QString &password) = 0;
-
- //! Rename a user
- /** \param user The user's id
- * \param newName The user's new name
- */
- virtual void renameUser(UserId user, const QString &newName) = 0;
-
- //! Validate a username with a given password.
- /** \param user The username to validate
- * \param password The user's alleged password
- * \return A valid UserId if the password matches the username; 0 else
- */
- virtual UserId validateUser(const QString &user, const QString &password) = 0;
-
- //! Remove a core user from storage.
- /** \param user The userid to delete
- */
- virtual void delUser(UserId user) = 0;
-
- /* Network handling */
-
- //! Get the unique NetworkId of the network for a user.
- /** \param user The core user who owns this buffername
- * \param network The network name
- * \return The BufferId corresponding to the given network and buffer name, or 0 if not found
- */
- virtual uint getNetworkId(UserId user, const QString &network) = 0;
-
- /* Buffer handling */
-
- //! Get the unique BufferId for the given combination of network and buffername for a user.
- /** \param user The core user who owns this buffername
- * \param network The network name
- * \param buffer The buffer name (if empty, the net's status buffer is returned)
- * \return The BufferId corresponding to the given network and buffer name, or 0 if not found
- */
- virtual BufferId getBufferId(UserId user, const QString &network, const QString &buffer = "") = 0;
-
- //! Request a list of all buffers known to a user since a certain point in time.
- /** This method is used to get a list of all buffers we have stored a backlog from.
- * Optionally, a QDateTime can be given, so that only buffers are listed that where active
- * since that point in time.
- * \param user The user whose buffers we request
- * \param since If this is defined, older buffers will be ignored
- * \return A list of the BufferIds for all buffers as requested
- */
- virtual QList<BufferId> requestBuffers(UserId user, QDateTime since = QDateTime()) = 0;
-
- /* Message handling */
-
- //! Store a Message in the backlog.
- /** \param msg The message object to be stored
- * \return The globally unique id for the stored message
- */
- virtual MsgId logMessage(Message msg) = 0;
-
- //! Request a certain number (or all) messages stored in a given buffer.
- /** \param buffer The buffer we request messages from
- * \param lastmsgs The number of messages we would like to receive, or -1 if we'd like all messages from that buffername
- * \param offset Do not return (but DO count) messages with MsgId >= offset, if offset >= 0
- * \return The requested list of messages
- */
- virtual QList<Message> requestMsgs(BufferId buffer, int lastmsgs = -1, int offset = -1) = 0;
-
- //! Request messages stored in a given buffer since a certain point in time.
- /** \param buffer The buffer we request messages from
- * \param since Only return messages newer than this point in time
- * \param offset Do not return messages with MsgId >= offset, if offset >= 0
- * \return The requested list of messages
- */
- virtual QList<Message> requestMsgs(BufferId buffer, QDateTime since, int offset = -1) = 0;
-
- //! Request a range of messages stored in a given buffer.
- /** \param buffer The buffer we request messages from
- * \param first Return messages with first <= MsgId <= last
- * \param last Return messages with first <= MsgId <= last
- * \return The requested list of messages
- */
- virtual QList<Message> requestMsgRange(BufferId buffer, int first, int last) = 0;
-
- public slots:
- //! This is just for importing the old file-based backlog */
- /** This slot needs to be implemented in the storage backends.
- * It should first prepare (delete?) the database, then call initBackLogOld(UserId id).
- * If the importing was successful, backLogEnabledOld will be true afterwards.
- */
- virtual void importOldBacklog() = 0;
-
- signals:
- //! Sent when a new BufferId is created, or an existing one changed somehow.
- void bufferIdUpdated(BufferId);
- //! Sent when a new user has been added
- void userAdded(UserId, const QString &username);
- //! Sent when a user has been renamed
- void userRenamed(UserId, const QString &newname);
- //! Sent when a user has been removed
- void userRemoved(UserId);
-
- public:
- /* Exceptions */
- struct AuthError : public Exception {};
-
- protected:
- // Old stuff, just for importing old file-based data
- void initBackLogOld(UserId id);
-
- QSqlDatabase logDb; // FIXME this does not belong in the base class!
-
- bool backLogEnabledOld;
- QDir backLogDir;
- QHash<QString, QList<Message> > backLog;
- QHash<QString, QFile *> logFiles;
- QHash<QString, QDataStream *> logStreams;
- QHash<QString, QDate> logFileDates;
- QHash<QString, QDir> logFileDirs;
-
+public:
+ Storage(QObject *parent = 0);
+ virtual ~Storage() {};
+
+ enum State {
+ IsReady, // ready to go
+ NeedsSetup, // need basic setup (ask the user for input)
+ NotAvailable // remove the storage backend from the list of avaliable backends
+ };
+
+public slots:
+ /* General */
+
+ //! Check if the storage type is available.
+ /** A storage subclass should return true if it can be successfully used, i.e. if all
+ * prerequisites are in place (e.g. we have an appropriate DB driver etc.).
+ * \return True if and only if the storage class can be successfully used.
+ */
+ virtual bool isAvailable() const = 0;
+
+ //! Returns the display name of the storage backend
+ /** \return A string that can be used by the client to name the storage backend */
+ virtual QString displayName() const = 0;
+
+ //! Returns a description of this storage backend
+ /** \return A string that can be displayed by the client to describe the storage backend */
+ virtual QString description() const = 0;
+
+ //! Returns a list of properties required to use the storage backend
+ virtual QStringList setupKeys() const = 0;
+
+ //! Returns a map where the keys are are properties to use the storage backend
+ /* the values are QVariants with default values */
+ virtual QVariantMap setupDefaults() const = 0;
+
+
+ //! Setup the storage provider.
+ /** This prepares the storage provider (e.g. create tables, etc.) for use within Quassel.
+ * \param settings Hostname, port, username, password, ...
+ * \return True if and only if the storage provider was initialized successfully.
+ */
+ virtual bool setup(const QVariantMap &settings = QVariantMap()) = 0;
+
+ //! Initialize the storage provider
+ /** \param settings Hostname, port, username, password, ...
+ * \return the State the storage backend is now in (see Storage::State)
+ */
+ virtual State init(const QVariantMap &settings = QVariantMap()) = 0;
+
+ //! Makes temp data persistent
+ /** This Method is periodically called by the Quassel Core to make temporary
+ * data persistant. This reduces the data loss drastically in the
+ * unlikely case of a Core crash.
+ */
+ virtual void sync() = 0;
+
+ // TODO: Add functions for configuring the backlog handling, i.e. defining auto-cleanup settings etc
+
+ /* User handling */
+
+ //! Add a new core user to the storage.
+ /** \param user The username of the new user
+ * \param password The cleartext password for the new user
+ * \return The new user's UserId
+ */
+ virtual UserId addUser(const QString &user, const QString &password) = 0;
+
+ //! Update a core user's password.
+ /** \param user The user's id
+ * \param password The user's new password
+ * \return true on success.
+ */
+ virtual bool updateUser(UserId user, const QString &password) = 0;
+
+ //! Rename a user
+ /** \param user The user's id
+ * \param newName The user's new name
+ */
+ virtual void renameUser(UserId user, const QString &newName) = 0;
+
+ //! Validate a username with a given password.
+ /** \param user The username to validate
+ * \param password The user's alleged password
+ * \return A valid UserId if the password matches the username; 0 else
+ */
+ virtual UserId validateUser(const QString &user, const QString &password) = 0;
+
+ //! Check if a user with given username exists. Do not use for login purposes!
+ /** \param username The username to validate
+ * \return A valid UserId if the user exists; 0 else
+ */
+ virtual UserId getUserId(const QString &username) = 0;
+
+ //! Determine the UserId of the internal user
+ /** \return A valid UserId if the password matches the username; 0 else
+ */
+ virtual UserId internalUser() = 0;
+
+ //! Remove a core user from storage.
+ /** \param user The userid to delete
+ */
+ virtual void delUser(UserId user) = 0;
+
+ //! Store a user setting persistently
+ /**
+ * \param userId The users Id
+ * \param settingName The Name of the Setting
+ * \param data The Value
+ */
+ virtual void setUserSetting(UserId userId, const QString &settingName, const QVariant &data) = 0;
+
+ //! Retrieve a persistent user setting
+ /**
+ * \param userId The users Id
+ * \param settingName The Name of the Setting
+ * \param default Value to return in case it's unset.
+ * \return the Value of the Setting or the default value if it is unset.
+ */
+ virtual QVariant getUserSetting(UserId userId, const QString &settingName, const QVariant &data = QVariant()) = 0;
+
+ /* Identity handling */
+ virtual IdentityId createIdentity(UserId user, CoreIdentity &identity) = 0;
+ virtual bool updateIdentity(UserId user, const CoreIdentity &identity) = 0;
+ virtual void removeIdentity(UserId user, IdentityId identityId) = 0;
+ virtual QList<CoreIdentity> identities(UserId user) = 0;
+
+ /* Network handling */
+
+ //! Create a new Network in the storage backend and return it unique Id
+ /** \param user The core user who owns this network
+ * \param networkInfo The networkInfo holding the network definition
+ * \return the NetworkId of the newly created Network. Possibly invalid.
+ */
+ virtual NetworkId createNetwork(UserId user, const NetworkInfo &info) = 0;
+
+ //! Apply the changes to NetworkInfo info to the storage engine
+ /**
+ * \param user The core user
+ * \param networkInfo The Updated NetworkInfo
+ * \return true if successfull.
+ */
+ virtual bool updateNetwork(UserId user, const NetworkInfo &info) = 0;
+
+ //! Permanently remove a Network and all the data associated with it.
+ /** \note This method is thredsafe.
+ *
+ * \param user The core user
+ * \param networkId The network to delete
+ * \return true if successfull.
+ */
+ virtual bool removeNetwork(UserId user, const NetworkId &networkId) = 0;
+
+ //! Returns a list of all NetworkInfos for the given UserId user
+ /** \note This method is thredsafe.
+ *
+ * \param user The core user
+ * \return QList<NetworkInfo>.
+ */
+ virtual QList<NetworkInfo> networks(UserId user) = 0;
+
+ //! Get a list of Networks to restore
+ /** Return a list of networks the user was connected at the time of core shutdown
+ * \note This method is threadsafe.
+ *
+ * \param user The User Id in question
+ */
+ virtual QList<NetworkId> connectedNetworks(UserId user) = 0;
+
+ //! Update the connected state of a network
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ * \param isConnected whether the network is connected or not
+ */
+ virtual void setNetworkConnected(UserId user, const NetworkId &networkId, bool isConnected) = 0;
+
+ //! Get a hash of channels with their channel keys for a given network
+ /** The keys are channel names and values are passwords (possibly empty)
+ * \note This method is threadsafe
+ *
+ * \param user The id of the networks owner
+ * \param networkId The Id of the network
+ */
+ virtual QHash<QString, QString> persistentChannels(UserId user, const NetworkId &networkId) = 0;
+
+ //! Update the connected state of a channel
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ * \param channel The name of the channel
+ * \param isJoined whether the channel is connected or not
+ */
+ virtual void setChannelPersistent(UserId user, const NetworkId &networkId, const QString &channel, bool isJoined) = 0;
+
+ //! Update the key of a channel
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ * \param channel The name of the channel
+ * \param key The key of the channel (possibly empty)
+ */
+ virtual void setPersistentChannelKey(UserId user, const NetworkId &networkId, const QString &channel, const QString &key) = 0;
+
+ //! retrieve last known away message for session restore
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ */
+ virtual QString awayMessage(UserId user, NetworkId networkId) = 0;
+
+ //! Make away message persistent for session restore
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ * \param awayMsg The current away message of own user
+ */
+ virtual void setAwayMessage(UserId user, NetworkId networkId, const QString &awayMsg) = 0;
+
+
+ //! retrieve last known user mode for session restore
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ */
+ virtual QString userModes(UserId user, NetworkId networkId) = 0;
+
+ //! Make our user modes persistent for session restore
+ /** \note This method is threadsafe
+ *
+ * \param user The Id of the networks owner
+ * \param networkId The Id of the network
+ * \param userModes The current user modes of own user
+ */
+ virtual void setUserModes(UserId user, NetworkId networkId, const QString &userModes) = 0;
+
+
+ /* Buffer handling */
+
+ //! Get the unique BufferInfo for the given combination of network and buffername for a user.
+ /** \param user The core user who owns this buffername
+ * \param networkId The network id
+ * \param type The type of the buffer (StatusBuffer, Channel, etc.)
+ * \param buffer The buffer name (if empty, the net's status buffer is returned)
+ * \param create Whether or not the buffer should be created if it doesnt exist
+ * \return The BufferInfo corresponding to the given network and buffer name, or an invalid BufferInfo if not found
+ */
+ virtual BufferInfo bufferInfo(UserId user, const NetworkId &networkId, BufferInfo::Type type, const QString &buffer = "", bool create = true) = 0;
+
+ //! Get the unique BufferInfo for a bufferId
+ /** \param user The core user who owns this buffername
+ * \param bufferId The id of the buffer
+ * \return The BufferInfo corresponding to the given buffer id, or an invalid BufferInfo if not found.
+ */
+ virtual BufferInfo getBufferInfo(UserId user, const BufferId &bufferId) = 0;
+
+ //! Request a list of all buffers known to a user.
+ /** This method is used to get a list of all buffers we have stored a backlog from.
+ * \param user The user whose buffers we request
+ * \return A list of the BufferInfos for all buffers as requested
+ */
+ virtual QList<BufferInfo> requestBuffers(UserId user) = 0;
+
+ //! Request a list of BufferIds for a given NetworkId
+ /** \note This method is threadsafe.
+ *
+ * \param user The user whose buffers we request
+ * \param networkId The NetworkId of the network in question
+ * \return List of BufferIds belonging to the Network
+ */
+ virtual QList<BufferId> requestBufferIdsForNetwork(UserId user, NetworkId networkId) = 0;
+
+ //! Remove permanently a buffer and it's content from the storage backend
+ /** This call cannot be reverted!
+ * \param user The user who is the owner of the buffer
+ * \param bufferId The bufferId
+ * \return true if successfull
+ */
+ virtual bool removeBuffer(const UserId &user, const BufferId &bufferId) = 0;
+
+
+ //! Rename a Buffer
+ /** \note This method is threadsafe.
+ * \param user The id of the buffer owner
+ * \param bufferId The bufferId
+ * \param newName The new name of the buffer
+ * \return true if successfull
+ */
+ virtual bool renameBuffer(const UserId &user, const BufferId &bufferId, const QString &newName) = 0;
+
+ //! Merge the content of two Buffers permanently. This cannot be reversed!
+ /** \note This method is threadsafe.
+ * \param user The id of the buffer owner
+ * \param bufferId1 The bufferId of the remaining buffer
+ * \param bufferId2 The buffer that is about to be removed
+ * \return true if successfull
+ */
+ virtual bool mergeBuffersPermanently(const UserId &user, const BufferId &bufferId1, const BufferId &bufferId2) = 0;
+
+ //! Update the LastSeenDate for a Buffer
+ /** This Method is used to make the LastSeenDate of a Buffer persistent
+ * \param user The Owner of that Buffer
+ * \param bufferId The buffer id
+ * \param MsgId The Message id of the message that has been just seen
+ */
+ virtual void setBufferLastSeenMsg(UserId user, const BufferId &bufferId, const MsgId &msgId) = 0;
+
+ //! Get a Hash of all last seen message ids
+ /** This Method is called when the Quassel Core is started to restore the lastSeenMsgIds
+ * \param user The Owner of the buffers
+ */
+ virtual QHash<BufferId, MsgId> bufferLastSeenMsgIds(UserId user) = 0;
+
+ //! Update the MarkerLineMsgId for a Buffer
+ /** This Method is used to make the marker line position of a Buffer persistent
+ * \note This method is threadsafe.
+ *
+ * \param user The Owner of that Buffer
+ * \param bufferId The buffer id
+ * \param MsgId The Message id where the marker line should be placed
+ */
+ virtual void setBufferMarkerLineMsg(UserId user, const BufferId &bufferId, const MsgId &msgId) = 0;
+
+ //! Get a Hash of all marker line message ids
+ /** This Method is called when the Quassel Core is started to restore the MarkerLineMsgIds
+ * \note This method is threadsafe.
+ *
+ * \param user The Owner of the buffers
+ */
+ virtual QHash<BufferId, MsgId> bufferMarkerLineMsgIds(UserId user) = 0;
+
+
+ /* Message handling */
+
+ //! Store a Message in the storage backend and set its unique Id.
+ /** \param msg The message object to be stored
+ * \return true on success
+ */
+ virtual bool logMessage(Message &msg) = 0;
+
+ //! Store a list of Messages in the storage backend and set their unique Id.
+ /** \param msgs The list message objects to be stored
+ * \return true on success
+ */
+ virtual bool logMessages(MessageList &msgs) = 0;
+
+ //! Request a certain number messages stored in a given buffer.
+ /** \param buffer The buffer we request messages from
+ * \param first if != -1 return only messages with a MsgId >= first
+ * \param last if != -1 return only messages with a MsgId < last
+ * \param limit if != -1 limit the returned list to a max of \limit entries
+ * \return The requested list of messages
+ */
+ virtual QList<Message> requestMsgs(UserId user, BufferId bufferId, MsgId first = -1, MsgId last = -1, int limit = -1) = 0;
+
+ //! Request a certain number of messages across all buffers
+ /** \param first if != -1 return only messages with a MsgId >= first
+ * \param last if != -1 return only messages with a MsgId < last
+ * \param limit Max amount of messages
+ * \return The requested list of messages
+ */
+ virtual QList<Message> requestAllMsgs(UserId user, MsgId first = -1, MsgId last = -1, int limit = -1) = 0;
+
+signals:
+ //! Sent when a new BufferInfo is created, or an existing one changed somehow.
+ void bufferInfoUpdated(UserId user, const BufferInfo &);
+ //! Sent when a Buffer was renamed
+ void bufferRenamed(const QString &newName, const QString &oldName);
+ //! Sent when a new user has been added
+ void userAdded(UserId, const QString &username);
+ //! Sent when a user has been renamed
+ void userRenamed(UserId, const QString &newname);
+ //! Sent when a user has been removed
+ void userRemoved(UserId);
+
+protected:
+ //! when implementing a storage handler, use this method to crypt user passwords.
+ /** This guarantees compatibility with other storage handlers and allows easy migration
+ */
+ QString cryptedPassword(const QString &password);