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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtNetwork 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 QNETWORKACCESSHTTPBACKEND_P_H
#define QNETWORKACCESSHTTPBACKEND_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of the Network Access API. This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//
#include "qhttpnetworkconnection_p.h"
#include "qnetworkaccessbackend_p.h"
#include "qnetworkrequest.h"
#include "qnetworkreply.h"
#include "qabstractsocket.h"
#include "QtCore/qpointer.h"
#include "QtCore/qdatetime.h"
#include "QtCore/qsharedpointer.h"
#include "qatomic.h"
#ifndef QT_NO_HTTP
QT_BEGIN_NAMESPACE
class QNetworkAccessCachedHttpConnection;
class QNetworkAccessHttpBackendIODevice;
class QNetworkAccessHttpBackend: public QNetworkAccessBackend
{
Q_OBJECT
public:
QNetworkAccessHttpBackend();
virtual ~QNetworkAccessHttpBackend();
virtual void open();
virtual void closeDownstreamChannel();
virtual void downstreamReadyWrite();
virtual void setDownstreamLimited(bool b);
virtual void setReadBufferSize(qint64 size);
virtual void emitReadBufferFreed(qint64 size);
virtual void copyFinished(QIODevice *);
#ifndef QT_NO_OPENSSL
virtual void ignoreSslErrors();
virtual void ignoreSslErrors(const QList<QSslError> &errors);
virtual void fetchSslConfiguration(QSslConfiguration &configuration) const;
virtual void setSslConfiguration(const QSslConfiguration &configuration);
#endif
QNetworkCacheMetaData fetchCacheMetaData(const QNetworkCacheMetaData &metaData) const;
// we return true since HTTP needs to send PUT/POST data again after having authenticated
bool needsResetableUploadData() { return true; }
bool canResume() const;
void setResumeOffset(quint64 offset);
signals:
// To HTTP thread:
void startHttpRequest();
void abortHttpRequest();
void readBufferSizeChanged(qint64 size);
void readBufferFreed(qint64 size);
void startHttpRequestSynchronously();
void haveUploadData(QByteArray dataArray, bool dataAtEnd, qint64 dataSize);
private slots:
// From HTTP thread:
void replyDownloadData(QByteArray);
void replyFinished();
void replyDownloadMetaData(QList<QPair<QByteArray,QByteArray> >,int,QString,bool,QSharedPointer<char>,qint64);
void replyDownloadProgressSlot(qint64,qint64);
void httpAuthenticationRequired(const QHttpNetworkRequest &request, QAuthenticator *auth);
void httpError(QNetworkReply::NetworkError error, const QString &errorString);
#ifndef QT_NO_OPENSSL
void replySslErrors(const QList<QSslError> &, bool *, QList<QSslError> *);
void replySslConfigurationChanged(const QSslConfiguration&);
#endif
// From QNonContiguousByteDeviceThreadForwardImpl in HTTP thread:
void resetUploadDataSlot(bool *r);
void wantUploadDataSlot(qint64);
void sentUploadDataSlot(qint64);
bool sendCacheContents(const QNetworkCacheMetaData &metaData);
private:
QHttpNetworkRequest httpRequest; // There is also a copy in the HTTP thread
int statusCode;
QString reasonPhrase;
// Will be increased by HTTP thread:
QSharedPointer<QAtomicInt> pendingDownloadDataEmissions;
QSharedPointer<QAtomicInt> pendingDownloadProgressEmissions;
bool loadingFromCache;
QByteDataBuffer pendingDownloadData;
bool usingZerocopyDownloadBuffer;
#ifndef QT_NO_OPENSSL
QSslConfiguration *pendingSslConfiguration;
bool pendingIgnoreAllSslErrors;
QList<QSslError> pendingIgnoreSslErrorsList;
#endif
quint64 resumeOffset;
bool loadFromCacheIfAllowed(QHttpNetworkRequest &httpRequest);
void invalidateCache();
void postRequest();
void readFromHttp();
void checkForRedirect(const int statusCode);
};
class QNetworkAccessHttpBackendFactory : public QNetworkAccessBackendFactory
{
public:
virtual QNetworkAccessBackend *create(QNetworkAccessManager::Operation op,
const QNetworkRequest &request) const;
};
QT_END_NAMESPACE
#endif // QT_NO_HTTP
#endif
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