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