/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
** All rights reserved. | |
** Contact: Nokia Corporation (qt-info@nokia.com) | |
** | |
** This file is part of the QtNetwork module of the Qt Toolkit. | |
** | |
** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
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** file. Please review the following information to ensure the GNU Lesser | |
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** | |
** In addition, as a special exception, Nokia gives you certain additional | |
** rights. These rights are described in the Nokia 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: | |
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** $QT_END_LICENSE$ | |
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****************************************************************************/ | |
#ifndef QHTTPNETWORKCONNECTIONCHANNEL_H | |
#define QHTTPNETWORKCONNECTIONCHANNEL_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/qhttpnetworkconnection_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; | |
#ifndef HttpMessagePair | |
typedef QPair<QHttpNetworkRequest, QHttpNetworkReply*> HttpMessagePair; | |
#endif | |
class QHttpNetworkConnectionChannel : public QObject { | |
Q_OBJECT | |
public: | |
enum ChannelState { | |
IdleState = 0, // ready to send request | |
ConnectingState = 1, // connecting to host | |
WritingState = 2, // writing the data | |
WaitingState = 4, // waiting for reply | |
ReadingState = 8, // reading the reply | |
BusyState = (ConnectingState|WritingState|WaitingState|ReadingState) | |
}; | |
QAbstractSocket *socket; | |
ChannelState state; | |
QHttpNetworkRequest request; // current request | |
QHttpNetworkReply *reply; // current reply for this request | |
qint64 written; | |
qint64 bytesTotal; | |
bool resendCurrent; | |
int lastStatus; // last status received on this channel | |
bool pendingEncrypt; // for https (send after encrypted) | |
int reconnectAttempts; // maximum 2 reconnection attempts | |
QAuthenticatorPrivate::Method authMethod; | |
QAuthenticatorPrivate::Method proxyAuthMethod; | |
QAuthenticator authenticator; | |
QAuthenticator proxyAuthenticator; | |
#ifndef QT_NO_OPENSSL | |
bool ignoreAllSslErrors; | |
QList<QSslError> ignoreSslErrorsList; | |
#endif | |
// HTTP pipelining -> http://en.wikipedia.org/wiki/Http_pipelining | |
enum PipeliningSupport { | |
PipeliningSupportUnknown, // default for a new connection | |
PipeliningProbablySupported, // after having received a server response that indicates support | |
PipeliningNotSupported // currently not used | |
}; | |
PipeliningSupport pipeliningSupported; | |
QList<HttpMessagePair> alreadyPipelinedRequests; | |
QHttpNetworkConnectionChannel(); | |
void setConnection(QHttpNetworkConnection *c); | |
QPointer<QHttpNetworkConnection> connection; | |
void init(); | |
void close(); | |
bool sendRequest(); | |
bool ensureConnection(); | |
bool expand(bool dataComplete); | |
void allDone(); // reply header + body have been read | |
void handleStatus(); // called from allDone() | |
bool resetUploadData(); // return true if resetting worked or there is no upload data | |
void pipelineInto(HttpMessagePair &pair); | |
void requeueCurrentlyPipelinedRequests(); | |
void detectPipeliningSupport(); | |
void handleUnexpectedEOF(); | |
void closeAndResendCurrentRequest(); | |
void eatWhitespace(); | |
bool isSocketBusy() const; | |
bool isSocketWriting() const; | |
bool isSocketWaiting() const; | |
bool isSocketReading() const; | |
friend class QNetworkAccessHttpBackend; | |
protected slots: | |
void _q_receiveReply(); | |
void _q_bytesWritten(qint64 bytes); // proceed sending | |
void _q_readyRead(); // pending data to read | |
void _q_disconnected(); // disconnected from host | |
void _q_connected(); // start sending request | |
void _q_error(QAbstractSocket::SocketError); // error from socket | |
#ifndef QT_NO_NETWORKPROXY | |
void _q_proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *auth); // from transparent proxy | |
#endif | |
void _q_uploadDataReadyRead(); | |
#ifndef QT_NO_OPENSSL | |
void _q_encrypted(); // start sending request (https) | |
void _q_sslErrors(const QList<QSslError> &errors); // ssl errors from the socket | |
void _q_encryptedBytesWritten(qint64 bytes); // proceed sending | |
#endif | |
}; | |
QT_END_NAMESPACE | |
#endif // QT_NO_HTTP | |
#endif |