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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtNetwork module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QHTTPNETWORKCONNECTION_H
#define QHTTPNETWORKCONNECTION_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 <QtNetwork/qnetworkrequest.h>
#include <QtNetwork/qnetworkreply.h>
#include <QtNetwork/qabstractsocket.h>
#include <private/qobject_p.h>
#include <qauthenticator.h>
#include <qnetworkproxy.h>
#include <qbuffer.h>
#include <private/qhttpnetworkheader_p.h>
#include <private/qhttpnetworkrequest_p.h>
#include <private/qhttpnetworkreply_p.h>
#include <private/qhttpnetworkconnectionchannel_p.h>
#ifndef QT_NO_HTTP
#ifndef QT_NO_OPENSSL
# include <QtNetwork/qsslsocket.h>
# include <QtNetwork/qsslerror.h>
#else
# include <QtNetwork/qtcpsocket.h>
#endif
QT_BEGIN_NAMESPACE
class QHttpNetworkRequest;
class QHttpNetworkReply;
class QByteArray;
class QHttpNetworkConnectionPrivate;
class Q_AUTOTEST_EXPORT QHttpNetworkConnection : public QObject
{
Q_OBJECT
public:
QHttpNetworkConnection(const QString &hostName, quint16 port = 80, bool encrypt = false, QObject *parent = 0);
~QHttpNetworkConnection();
//The hostname to which this is connected to.
QString hostName() const;
//The HTTP port in use.
quint16 port() const;
//add a new HTTP request through this connection
QHttpNetworkReply* sendRequest(const QHttpNetworkRequest &request);
#ifndef QT_NO_NETWORKPROXY
//set the proxy for this connection
void setCacheProxy(const QNetworkProxy &networkProxy);
QNetworkProxy cacheProxy() const;
void setTransparentProxy(const QNetworkProxy &networkProxy);
QNetworkProxy transparentProxy() const;
#endif
//enable encryption
void enableEncryption();
bool isEncrypted() const;
//authentication parameters
void setProxyAuthentication(QAuthenticator *authenticator);
void setAuthentication(const QString &domain, QAuthenticator *authenticator);
#ifndef QT_NO_OPENSSL
void setSslConfiguration(const QSslConfiguration &config);
void ignoreSslErrors(int channel = -1);
void ignoreSslErrors(const QList<QSslError> &errors, int channel = -1);
Q_SIGNALS:
void sslErrors(const QList<QSslError> &errors);
#endif
Q_SIGNALS:
#ifndef QT_NO_NETWORKPROXY
//cannot be used with queued connection.
void proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *authenticator,
const QHttpNetworkConnection *connection = 0);
#endif
void authenticationRequired(const QHttpNetworkRequest &request, QAuthenticator *authenticator,
const QHttpNetworkConnection *connection = 0);
void error(QNetworkReply::NetworkError errorCode, const QString &detail = QString());
private:
Q_DECLARE_PRIVATE(QHttpNetworkConnection)
Q_DISABLE_COPY(QHttpNetworkConnection)
friend class QHttpNetworkReply;
friend class QHttpNetworkConnectionChannel;
Q_PRIVATE_SLOT(d_func(), void _q_startNextRequest())
Q_PRIVATE_SLOT(d_func(), void _q_restartAuthPendingRequests())
};
// private classes
typedef QPair<QHttpNetworkRequest, QHttpNetworkReply*> HttpMessagePair;
class QHttpNetworkConnectionPrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QHttpNetworkConnection)
public:
QHttpNetworkConnectionPrivate(const QString &hostName, quint16 port, bool encrypt);
~QHttpNetworkConnectionPrivate();
void init();
enum { ChunkSize = 4096 };
int indexOf(QAbstractSocket *socket) const;
bool isSocketBusy(QAbstractSocket *socket) const;
bool isSocketWriting(QAbstractSocket *socket) const;
bool isSocketWaiting(QAbstractSocket *socket) const;
bool isSocketReading(QAbstractSocket *socket) const;
QHttpNetworkReply *queueRequest(const QHttpNetworkRequest &request);
void unqueueAndSendRequest(QAbstractSocket *socket);
void prepareRequest(HttpMessagePair &request);
bool sendRequest(QAbstractSocket *socket);
void receiveReply(QAbstractSocket *socket, QHttpNetworkReply *reply);
void resendCurrentRequest(QAbstractSocket *socket);
void closeChannel(int channel);
void copyCredentials(int fromChannel, QAuthenticator *auth, bool isProxy);
// private slots
void _q_startNextRequest(); // send the next request from the queue
void _q_restartAuthPendingRequests(); // send the currently blocked request
void createAuthorization(QAbstractSocket *socket, QHttpNetworkRequest &request);
bool ensureConnection(QAbstractSocket *socket);
QString errorDetail(QNetworkReply::NetworkError errorCode, QAbstractSocket *socket);
void eraseData(QHttpNetworkReply *reply);
#ifndef QT_NO_COMPRESS
bool expand(QAbstractSocket *socket, QHttpNetworkReply *reply, bool dataComplete);
#endif
void removeReply(QHttpNetworkReply *reply);
QString hostName;
quint16 port;
bool encrypt;
static const int channelCount;
QHttpNetworkConnectionChannel *channels; // parallel connections to the server
bool pendingAuthSignal; // there is an incomplete authentication signal
bool pendingProxyAuthSignal; // there is an incomplete proxy authentication signal
qint64 uncompressedBytesAvailable(const QHttpNetworkReply &reply) const;
qint64 uncompressedBytesAvailableNextBlock(const QHttpNetworkReply &reply) const;
qint64 compressedBytesAvailable(const QHttpNetworkReply &reply) const;
void emitReplyError(QAbstractSocket *socket, QHttpNetworkReply *reply, QNetworkReply::NetworkError errorCode);
bool handleAuthenticateChallenge(QAbstractSocket *socket, QHttpNetworkReply *reply, bool isProxy, bool &resend);
void allDone(QAbstractSocket *socket, QHttpNetworkReply *reply);
void handleStatus(QAbstractSocket *socket, QHttpNetworkReply *reply);
inline bool shouldEmitSignals(QHttpNetworkReply *reply);
inline bool expectContent(QHttpNetworkReply *reply);
#ifndef QT_NO_OPENSSL
QSslConfiguration sslConfiguration(const QHttpNetworkReply &reply) const;
#endif
#ifndef QT_NO_NETWORKPROXY
QNetworkProxy networkProxy;
#endif
//The request queues
QList<HttpMessagePair> highPriorityQueue;
QList<HttpMessagePair> lowPriorityQueue;
friend class QHttpNetworkConnectionChannel;
};
QT_END_NAMESPACE
#endif // QT_NO_HTTP
#endif
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