src/network/access/qhttpnetworkconnection_p.h
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/network/access/qhttpnetworkconnection_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,232 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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(quint16 channelCount, 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:
+    static const int defaultChannelCount;
+    static const int defaultPipelineLength;
+
+    QHttpNetworkConnectionPrivate(const QString &hostName, quint16 port, bool encrypt);
+    QHttpNetworkConnectionPrivate(quint16 channelCount, const QString &hostName, quint16 port, bool encrypt);
+    ~QHttpNetworkConnectionPrivate();
+    void init();
+
+    enum { ChunkSize = 4096 };
+
+    int indexOf(QAbstractSocket *socket) const;
+
+    QHttpNetworkReply *queueRequest(const QHttpNetworkRequest &request);
+    void requeueRequest(const HttpMessagePair &pair); // e.g. after pipeline broke
+    void dequeueAndSendRequest(QAbstractSocket *socket);
+    void prepareRequest(HttpMessagePair &request);
+
+    void fillPipeline(QAbstractSocket *socket);
+    bool fillPipeline(QList<HttpMessagePair> &queue, QHttpNetworkConnectionChannel &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);
+
+    QString errorDetail(QNetworkReply::NetworkError errorCode, QAbstractSocket *socket);
+
+#ifndef QT_NO_COMPRESS
+    bool expand(QAbstractSocket *socket, QHttpNetworkReply *reply, bool dataComplete);
+#endif
+    void removeReply(QHttpNetworkReply *reply);
+
+    QString hostName;
+    quint16 port;
+    bool encrypt;
+
+    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;
+
+
+    void emitReplyError(QAbstractSocket *socket, QHttpNetworkReply *reply, QNetworkReply::NetworkError errorCode);
+    bool handleAuthenticateChallenge(QAbstractSocket *socket, QHttpNetworkReply *reply, bool isProxy, bool &resend);
+
+
+#ifndef QT_NO_OPENSSL
+    QSslConfiguration sslConfiguration(const QHttpNetworkReply &reply) const;
+#endif
+
+#ifndef QT_NO_NETWORKPROXY
+    QNetworkProxy networkProxy;
+    void emitProxyAuthenticationRequired(const QHttpNetworkConnectionChannel *chan, const QNetworkProxy &proxy, QAuthenticator* auth);
+#endif
+
+    //The request queues
+    QList<HttpMessagePair> highPriorityQueue;
+    QList<HttpMessagePair> lowPriorityQueue;
+
+    friend class QHttpNetworkConnectionChannel;
+};
+
+
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_HTTP
+
+#endif