/** @file @author Stefan Frings */ #ifndef HTTPSESSIONSTORE_H #define HTTPSESSIONSTORE_H #include #include #include #include #include "httpglobal.h" #include "httpsession.h" #include "httpresponse.h" #include "httprequest.h" namespace qtwebapp { /** Stores HTTP sessions and deletes them when they have expired. The following configuration settings are required in the config file:
  expirationTime=3600000
  cookieName=sessionid
  
The following additional configurations settings are optionally:
  cookiePath=/
  cookieComment=Session ID
  ;cookieDomain=stefanfrings.de
  
*/ class DECLSPEC HttpSessionStore : public QObject { Q_OBJECT Q_DISABLE_COPY(HttpSessionStore) public: /** Constructor. */ HttpSessionStore(QSettings* settings, QObject* parent=NULL); /** Destructor */ virtual ~HttpSessionStore(); /** Get the ID of the current HTTP session, if it is valid. This method is thread safe. @warning Sessions may expire at any time, so subsequent calls of getSession() might return a new session with a different ID. @param request Used to get the session cookie @param response Used to get and set the new session cookie @return Empty string, if there is no valid session. */ QByteArray getSessionId(HttpRequest& request, HttpResponse& response); /** Get the session of a HTTP request, eventually create a new one. This method is thread safe. New sessions can only be created before the first byte has been written to the HTTP response. @param request Used to get the session cookie @param response Used to get and set the new session cookie @param allowCreate can be set to false, to disable the automatic creation of a new session. @return If autoCreate is disabled, the function returns a null session if there is no session. @see HttpSession::isNull() */ HttpSession getSession(HttpRequest& request, HttpResponse& response, bool allowCreate=true); /** Get a HTTP session by it's ID number. This method is thread safe. @return If there is no such session, the function returns a null session. @param id ID number of the session @see HttpSession::isNull() */ HttpSession getSession(const QByteArray id); /** Delete a session */ void removeSession(HttpSession session); protected: /** Storage for the sessions */ QMap sessions; private: /** Configuration settings */ QSettings* settings; /** Timer to remove expired sessions */ QTimer cleanupTimer; /** Name of the session cookie */ QByteArray cookieName; /** Time when sessions expire (in ms)*/ int expirationTime; /** Used to synchronize threads */ QMutex mutex; private slots: /** Called every minute to cleanup expired sessions. */ void sessionTimerEvent(); }; } // end of namespace #endif // HTTPSESSIONSTORE_H