src/network/access/qnetworkreplyimpl_p.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the QtNetwork module of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #ifndef QNETWORKREPLYIMPL_P_H
       
    43 #define QNETWORKREPLYIMPL_P_H
       
    44 
       
    45 //
       
    46 //  W A R N I N G
       
    47 //  -------------
       
    48 //
       
    49 // This file is not part of the Qt API.  It exists for the convenience
       
    50 // of the Network Access API.  This header file may change from
       
    51 // version to version without notice, or even be removed.
       
    52 //
       
    53 // We mean it.
       
    54 //
       
    55 
       
    56 #include "qnetworkreply.h"
       
    57 #include "qnetworkreply_p.h"
       
    58 #include "qnetworkaccessmanager.h"
       
    59 #include "qnetworkproxy.h"
       
    60 #include "QtCore/qmap.h"
       
    61 #include "QtCore/qqueue.h"
       
    62 #include "QtCore/qbuffer.h"
       
    63 #include "private/qringbuffer_p.h"
       
    64 #include "private/qbytedata_p.h"
       
    65 
       
    66 QT_BEGIN_NAMESPACE
       
    67 
       
    68 class QAbstractNetworkCache;
       
    69 class QNetworkAccessBackend;
       
    70 
       
    71 class QNetworkReplyImplPrivate;
       
    72 class QNetworkReplyImpl: public QNetworkReply
       
    73 {
       
    74     Q_OBJECT
       
    75 public:
       
    76     QNetworkReplyImpl(QObject *parent = 0);
       
    77     ~QNetworkReplyImpl();
       
    78     virtual void abort();
       
    79 
       
    80     // reimplemented from QNetworkReply
       
    81     virtual void close();
       
    82     virtual qint64 bytesAvailable() const;
       
    83     virtual void setReadBufferSize(qint64 size);
       
    84 
       
    85     virtual qint64 readData(char *data, qint64 maxlen);
       
    86     virtual bool event(QEvent *);
       
    87 
       
    88 #ifndef QT_NO_OPENSSL
       
    89     Q_INVOKABLE QSslConfiguration sslConfigurationImplementation() const;
       
    90     Q_INVOKABLE void setSslConfigurationImplementation(const QSslConfiguration &configuration);
       
    91     virtual void ignoreSslErrors();
       
    92     Q_INVOKABLE virtual void ignoreSslErrorsImplementation(const QList<QSslError> &errors);
       
    93 #endif
       
    94 
       
    95     Q_DECLARE_PRIVATE(QNetworkReplyImpl)
       
    96     Q_PRIVATE_SLOT(d_func(), void _q_startOperation())
       
    97     Q_PRIVATE_SLOT(d_func(), void _q_copyReadyRead())
       
    98     Q_PRIVATE_SLOT(d_func(), void _q_copyReadChannelFinished())
       
    99     Q_PRIVATE_SLOT(d_func(), void _q_bufferOutgoingData())
       
   100     Q_PRIVATE_SLOT(d_func(), void _q_bufferOutgoingDataFinished())
       
   101 };
       
   102 
       
   103 class QNetworkReplyImplPrivate: public QNetworkReplyPrivate
       
   104 {
       
   105 public:
       
   106     enum InternalNotifications {
       
   107         NotifyDownstreamReadyWrite,
       
   108         NotifyCloseDownstreamChannel,
       
   109         NotifyCopyFinished
       
   110     };
       
   111 
       
   112     enum State {
       
   113         Idle,
       
   114         Buffering,
       
   115         Working,
       
   116         Finished,
       
   117         Aborted
       
   118     };
       
   119 
       
   120     typedef QQueue<InternalNotifications> NotificationQueue;
       
   121 
       
   122     QNetworkReplyImplPrivate();
       
   123 
       
   124     void _q_startOperation();
       
   125     void _q_sourceReadyRead();
       
   126     void _q_sourceReadChannelFinished();
       
   127     void _q_copyReadyRead();
       
   128     void _q_copyReadChannelFinished();
       
   129     void _q_bufferOutgoingData();
       
   130     void _q_bufferOutgoingDataFinished();
       
   131 
       
   132     void setup(QNetworkAccessManager::Operation op, const QNetworkRequest &request,
       
   133                QIODevice *outgoingData);
       
   134 
       
   135     void pauseNotificationHandling();
       
   136     void resumeNotificationHandling();
       
   137     void backendNotify(InternalNotifications notification);
       
   138     void handleNotifications();
       
   139     void createCache();
       
   140     void completeCacheSave();
       
   141 
       
   142     // callbacks from the backend (through the manager):
       
   143     void setCachingEnabled(bool enable);
       
   144     bool isCachingEnabled() const;
       
   145     void consume(qint64 count);
       
   146     void emitUploadProgress(qint64 bytesSent, qint64 bytesTotal);
       
   147     qint64 nextDownstreamBlockSize() const;
       
   148     void appendDownstreamData(QByteDataBuffer &data);
       
   149     void appendDownstreamData(QIODevice *data);
       
   150     void finished();
       
   151     void error(QNetworkReply::NetworkError code, const QString &errorString);
       
   152     void metaDataChanged();
       
   153     void redirectionRequested(const QUrl &target);
       
   154     void sslErrors(const QList<QSslError> &errors);
       
   155 
       
   156     bool isFinished() const;
       
   157 
       
   158     QNetworkAccessBackend *backend;
       
   159     QIODevice *outgoingData;
       
   160     QRingBuffer *outgoingDataBuffer;
       
   161     QIODevice *copyDevice;
       
   162     QAbstractNetworkCache *networkCache() const;
       
   163 
       
   164     bool cacheEnabled;
       
   165     QIODevice *cacheSaveDevice;
       
   166 
       
   167     NotificationQueue pendingNotifications;
       
   168     bool notificationHandlingPaused;
       
   169 
       
   170     QUrl urlForLastAuthentication;
       
   171 #ifndef QT_NO_NETWORKPROXY
       
   172     QNetworkProxy lastProxyAuthentication;
       
   173     QList<QNetworkProxy> proxyList;
       
   174 #endif
       
   175 
       
   176     QByteDataBuffer readBuffer;
       
   177     qint64 bytesDownloaded;
       
   178     qint64 lastBytesDownloaded;
       
   179     qint64 bytesUploaded;
       
   180 
       
   181     QString httpReasonPhrase;
       
   182     int httpStatusCode;
       
   183 
       
   184     State state;
       
   185 
       
   186     Q_DECLARE_PUBLIC(QNetworkReplyImpl)
       
   187 };
       
   188 
       
   189 QT_END_NAMESPACE
       
   190 
       
   191 #endif