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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QTRANSPORTAUTH_QWS_H
#define QTRANSPORTAUTH_QWS_H
#include <QtCore/qglobal.h>
#if !defined(QT_NO_SXE) || defined(SXE_INSTALLER)
#include <QtCore/qobject.h>
#include <QtCore/qhash.h>
#include <QtCore/qstring.h>
#include <QtCore/qbuffer.h>
#include <QtCore/qpointer.h>
#include <sys/types.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
class QAuthDevice;
class QWSClient;
class QIODevice;
class QTransportAuthPrivate;
class QMutex;
class Q_GUI_EXPORT QTransportAuth : public QObject
{
Q_OBJECT
public:
static QTransportAuth *getInstance();
enum Result {
// Error codes
Pending = 0x00,
TooSmall = 0x01,
CacheMiss = 0x02,
NoMagic = 0x03,
NoSuchKey = 0x04,
FailMatch = 0x05,
OutOfDate = 0x06,
// reserved for expansion
Success = 0x1e,
ErrMask = 0x1f,
// Verification codes
Allow = 0x20,
Deny = 0x40,
Ask = 0x60,
// reserved
StatusMask = 0xe0
};
enum Properties {
Trusted = 0x01,
Connection = 0x02,
UnixStreamSock = 0x04,
SharedMemory = 0x08,
MessageQueue = 0x10,
UDP = 0x20,
TCP = 0x40,
UserDefined = 0x80,
TransportType = 0xfc
};
struct Data
{
Data() { processId = -1; }
Data( unsigned char p, int d )
: properties( p )
, descriptor( d )
, processId( -1 )
{
if (( properties & TransportType ) == TCP ||
( properties & TransportType ) == UnixStreamSock )
properties |= Connection;
}
unsigned char properties;
unsigned char progId;
unsigned char status;
unsigned int descriptor; // socket fd or shmget key
pid_t processId;
bool trusted() const;
void setTrusted( bool );
bool connection() const;
void setConnection( bool );
};
static const char *errorString( const QTransportAuth::Data & );
QTransportAuth::Data *connectTransport( unsigned char, int );
QAuthDevice *authBuf( QTransportAuth::Data *, QIODevice * );
QAuthDevice *recvBuf( QTransportAuth::Data *, QIODevice * );
QIODevice *passThroughByClient( QWSClient * ) const;
void setKeyFilePath( const QString & );
QString keyFilePath() const;
const unsigned char *getClientKey( unsigned char progId );
void invalidateClientKeyCache();
QMutex *getKeyFileMutex();
void setLogFilePath( const QString & );
QString logFilePath() const;
void setPackageRegistry( QObject *registry );
bool isDiscoveryMode() const;
void setProcessKey( const char * );
void setProcessKey( const char *, const char * );
void registerPolicyReceiver( QObject * );
void unregisterPolicyReceiver( QObject * );
bool authToMessage( QTransportAuth::Data &d, char *hdr, const char *msg, int msgLen );
bool authFromMessage( QTransportAuth::Data &d, const char *msg, int msgLen );
bool authorizeRequest( QTransportAuth::Data &d, const QString &request );
Q_SIGNALS:
void policyCheck( QTransportAuth::Data &, const QString & );
void authViolation( QTransportAuth::Data & );
private Q_SLOTS:
void bufferDestroyed( QObject * );
private:
// users should never construct their own
QTransportAuth();
~QTransportAuth();
friend class QAuthDevice;
Q_DECLARE_PRIVATE(QTransportAuth)
};
class Q_GUI_EXPORT RequestAnalyzer
{
public:
RequestAnalyzer();
virtual ~RequestAnalyzer();
QString operator()( QByteArray *data ) { return analyze( data ); }
bool requireMoreData() const { return moreData; }
qint64 bytesAnalyzed() const { return dataSize; }
protected:
virtual QString analyze( QByteArray * );
bool moreData;
qint64 dataSize;
};
/*!
\internal
\class QAuthDevice
\brief Pass-through QIODevice sub-class for authentication.
Use this class to forward on or receive forwarded data over a real
device for authentication.
*/
class Q_GUI_EXPORT QAuthDevice : public QIODevice
{
Q_OBJECT
public:
enum AuthDirection {
Receive,
Send
};
QAuthDevice( QIODevice *, QTransportAuth::Data *, AuthDirection );
~QAuthDevice();
void setTarget( QIODevice *t ) { m_target = t; }
QIODevice *target() const { return m_target; }
void setClient( QObject* );
QObject *client() const;
void setRequestAnalyzer( RequestAnalyzer * );
bool isSequential() const;
bool atEnd() const;
qint64 bytesAvailable() const;
qint64 bytesToWrite() const;
bool seek( qint64 );
QByteArray & buffer();
protected:
qint64 readData( char *, qint64 );
qint64 writeData(const char *, qint64 );
private Q_SLOTS:
void recvReadyRead();
void targetBytesWritten( qint64 );
private:
bool authorizeMessage();
QTransportAuth::Data *d;
AuthDirection way;
QIODevice *m_target;
QObject *m_client;
QByteArray msgQueue;
qint64 m_bytesAvailable;
qint64 m_skipWritten;
RequestAnalyzer *analyzer;
};
inline bool QAuthDevice::isSequential() const
{
return true;
}
inline bool QAuthDevice::seek( qint64 )
{
return false;
}
inline bool QAuthDevice::atEnd() const
{
return msgQueue.isEmpty();
}
inline qint64 QAuthDevice::bytesAvailable() const
{
if ( way == Receive )
return m_bytesAvailable;
else
return ( m_target ? m_target->bytesAvailable() : 0 );
}
inline qint64 QAuthDevice::bytesToWrite() const
{
return msgQueue.size();
}
inline QByteArray &QAuthDevice::buffer()
{
return msgQueue;
}
QT_END_NAMESPACE
QT_END_HEADER
#endif // QT_NO_SXE
#endif // QTRANSPORTAUTH_QWS_H
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