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/***************************************************************************
* Copyright (C) 2014 by Marcin Ziemiński <zieminn@gmail.com> *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2.1 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA*
***************************************************************************/
#ifndef KTP_PROXY_OTR_SESSION_HEADER
#define KTP_PROXY_OTR_SESSION_HEADER
#include "otr-message.h"
#include "otr-constants.h"
#include "otr-proxy-channel.h"
#include "otr-utils.h"
#include <QString>
#include <QTimer>
extern "C" {
#include <gcrypt.h>
#include <libotr/userstate.h>
}
namespace OTR
{
class Manager;
class UserStateBox : public QObject
{
Q_OBJECT
public:
UserStateBox(OtrlUserState userState);
~UserStateBox();
OtrlUserState userState();
/** if zero timer is stopped */
void setInterval(uint interval);
private Q_SLOTS:
void otrlMessagePoll();
private:
OtrlUserState us;
QTimer periodicTimer;
};
typedef QSharedPointer<UserStateBox> UserStateBoxPtr;
class Session : public QObject
{
Q_OBJECT
public:
Session(const SessionContext &context, Manager *parent);
virtual ~Session() = default;
UserStateBox* userStateBox() const;
Manager* parent() const;
TrustLevel trustLevel() const;
const SessionContext& context() const;
QString remoteFingerprint() const;
QString localFingerprint() const;
/** forces OTR session into plain text state */
void forceUnencrypted();
/** Returns OTR init message */
Message startSession();
void stopSession();
CryptResult encrypt(Message &message);
CryptResult decrypt(Message &message);
void initSMPQuery(const QString &question, const QString &secret);
void initSMPSecret(const QString &secret);
void abortSMPAuthentiaction(ConnContext *context = NULL);
void respondSMPAuthentication(const QString &answer);
TrustFpResult trustFingerprint(bool trust);
// functions called by libotr ---------------------------------------
virtual void handleMessage(const Message &message) = 0;
/** Report whether you think the given user is online. Return 1 if
you think he is, 0 if you think he isn't, -1 if you're not sure. */
virtual int recipientStatus() const = 0;
virtual unsigned int maxMessageSize() const = 0;
void onTrustLevelChanged(const ConnContext *context = nullptr);
void onSessionRefreshed();
void onNewFingerprintReceived(const QString &fingeprint);
void onSMPFinished(bool success);
void onSMPInProgress();
void onSMPError();
void onSMPAborted();
void onSMPCheated();
void onSMPQuery(const QString &question);
private:
Fingerprint* getFingerprint() const;
ConnContext* findContext() const;
private Q_SLOTS:
void onFingerprintTrusted(const QString &accountId, const QString &fingerprint, bool trusted);
Q_SIGNALS:
void trustLevelChanged(TrustLevel trustLevel);
void sessionRefreshed();
void newFingerprintReceived(const QString &fingeprint);
void authenticationConcluded(bool success);
void authenticationError();
void authenticationAborted();
void authenticationCheated();
/** empty string if secret */
void authenticationRequested(const QString &question);
void authenticationInProgress();
private:
otrl_instag_t instance;
SessionContext ctx;
UserStateBox *userstate;
Manager *pr;
};
typedef QSharedPointer<Session> SessionPtr;
class ProxySession : public Session
{
public:
ProxySession(OtrProxyChannel::Adaptee *pca, const SessionContext &ctx, Manager *parent);
virtual void handleMessage(const Message &message) override;
virtual int recipientStatus() const override;
virtual unsigned int maxMessageSize() const override;
private:
OtrProxyChannel::Adaptee *pca;
};
} /* namespace OTR */
#endif
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