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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /src/network/access/qhttpthreaddelegate_p.h
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 QHTTPTHREADDELEGATE_H
+#define QHTTPTHREADDELEGATE_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 <QObject>
+#include <QThreadStorage>
+#include <QNetworkProxy>
+#include <QSslConfiguration>
+#include <QSslError>
+#include <QList>
+#include <QNetworkReply>
+#include "qhttpnetworkrequest_p.h"
+#include "qhttpnetworkconnection_p.h"
+#include <QSharedPointer>
+#include "qsslconfiguration.h"
+#include "private/qnoncontiguousbytedevice_p.h"
+#include "qnetworkaccessauthenticationmanager_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QAuthenticator;
+class QHttpNetworkReply;
+class QEventLoop;
+class QNetworkAccessCache;
+class QNetworkAccessCachedHttpConnection;
+
+class QHttpThreadDelegate : public QObject
+{
+ Q_OBJECT
+public:
+ explicit QHttpThreadDelegate(QObject *parent = 0);
+
+ ~QHttpThreadDelegate();
+
+ // incoming
+ bool ssl;
+#ifndef QT_NO_OPENSSL
+ QSslConfiguration incomingSslConfiguration;
+#endif
+ QHttpNetworkRequest httpRequest;
+ qint64 downloadBufferMaximumSize;
+ // From backend, modified by us for signal compression
+ QSharedPointer<QAtomicInt> pendingDownloadData;
+ QSharedPointer<QAtomicInt> pendingDownloadProgress;
+#ifndef QT_NO_NETWORKPROXY
+ QNetworkProxy cacheProxy;
+ QNetworkProxy transparentProxy;
+#endif
+ QSharedPointer<QNetworkAccessAuthenticationManager> authenticationManager;
+ bool synchronous;
+
+ // outgoing, Retrieved in the synchronous HTTP case
+ QByteArray synchronousDownloadData;
+ QList<QPair<QByteArray,QByteArray> > incomingHeaders;
+ int incomingStatusCode;
+ QString incomingReasonPhrase;
+ bool isPipeliningUsed;
+ qint64 incomingContentLength;
+ QNetworkReply::NetworkError incomingErrorCode;
+ QString incomingErrorDetail;
+#ifndef QT_NO_BEARERMANAGEMENT
+ QSharedPointer<QNetworkSession> networkSession;
+#endif
+
+protected:
+ // The zerocopy download buffer, if used:
+ QSharedPointer<char> downloadBuffer;
+ // The QHttpNetworkConnection that is used
+ QNetworkAccessCachedHttpConnection *httpConnection;
+ QByteArray cacheKey;
+ QHttpNetworkReply *httpReply;
+
+ // Used for implementing the synchronous HTTP, see startRequestSynchronously()
+ QEventLoop *synchronousRequestLoop;
+
+signals:
+ void authenticationRequired(const QHttpNetworkRequest &request, QAuthenticator *);
+#ifndef QT_NO_NETWORKPROXY
+ void proxyAuthenticationRequired(const QNetworkProxy &, QAuthenticator *);
+#endif
+#ifndef QT_NO_OPENSSL
+ void sslErrors(const QList<QSslError> &, bool *, QList<QSslError> *);
+ void sslConfigurationChanged(const QSslConfiguration);
+#endif
+ void downloadMetaData(QList<QPair<QByteArray,QByteArray> >,int,QString,bool,QSharedPointer<char>,qint64);
+ void downloadProgress(qint64, qint64);
+ void downloadData(QByteArray);
+ void error(QNetworkReply::NetworkError, const QString);
+ void downloadFinished();
+public slots:
+ // This are called via QueuedConnection from user thread
+ void startRequest();
+ void abortRequest();
+ // This is called with a BlockingQueuedConnection from user thread
+ void startRequestSynchronously();
+protected slots:
+ // From QHttp*
+ void readyReadSlot();
+ void finishedSlot();
+ void finishedWithErrorSlot(QNetworkReply::NetworkError errorCode, const QString &detail = QString());
+ void synchronousFinishedSlot();
+ void synchronousFinishedWithErrorSlot(QNetworkReply::NetworkError errorCode, const QString &detail = QString());
+ void headerChangedSlot();
+ void synchronousHeaderChangedSlot();
+ void dataReadProgressSlot(int done, int total);
+ void cacheCredentialsSlot(const QHttpNetworkRequest &request, QAuthenticator *authenticator);
+#ifndef QT_NO_OPENSSL
+ void sslErrorsSlot(const QList<QSslError> &errors);
+#endif
+
+ void synchronousAuthenticationRequiredSlot(const QHttpNetworkRequest &request, QAuthenticator *);
+#ifndef QT_NO_NETWORKPROXY
+ void synchronousProxyAuthenticationRequiredSlot(const QNetworkProxy &, QAuthenticator *);
+#endif
+
+protected:
+ // Cache for all the QHttpNetworkConnection objects.
+ // This is per thread.
+ static QThreadStorage<QNetworkAccessCache *> connections;
+
+};
+
+// This QNonContiguousByteDevice is connected to the QNetworkAccessHttpBackend
+// and represents the PUT/POST data.
+class QNonContiguousByteDeviceThreadForwardImpl : public QNonContiguousByteDevice
+{
+ Q_OBJECT
+protected:
+ bool wantDataPending;
+ qint64 m_amount;
+ char *m_data;
+ QByteArray m_dataArray;
+ bool m_atEnd;
+ qint64 m_size;
+public:
+ QNonContiguousByteDeviceThreadForwardImpl(bool aE, qint64 s)
+ : QNonContiguousByteDevice(),
+ wantDataPending(false),
+ m_amount(0),
+ m_data(0),
+ m_atEnd(aE),
+ m_size(s)
+ {
+ }
+
+ ~QNonContiguousByteDeviceThreadForwardImpl()
+ {
+ }
+
+ const char* readPointer(qint64 maximumLength, qint64 &len)
+ {
+ if (m_amount == 0 && wantDataPending == false) {
+ len = 0;
+ wantDataPending = true;
+ emit wantData(maximumLength);
+ } else if (m_amount == 0 && wantDataPending == true) {
+ // Do nothing, we already sent a wantData signal and wait for results
+ len = 0;
+ } else if (m_amount > 0) {
+ len = m_amount;
+ return m_data;
+ }
+ // cannot happen
+ return 0;
+ }
+
+ bool advanceReadPointer(qint64 a)
+ {
+ if (m_data == 0)
+ return false;
+
+ m_amount -= a;
+ m_data += a;
+
+ // To main thread to inform about our state
+ emit processedData(a);
+
+ // FIXME possible optimization, already ask user thread for some data
+
+ return true;
+ }
+
+ bool atEnd()
+ {
+ if (m_amount > 0)
+ return false;
+ else
+ return m_atEnd;
+ }
+
+ bool reset()
+ {
+ m_amount = 0;
+ m_data = 0;
+
+ // Communicate as BlockingQueuedConnection
+ bool b = false;
+ emit resetData(&b);
+ return b;
+ }
+
+ qint64 size()
+ {
+ return m_size;
+ }
+
+public slots:
+ // From user thread:
+ void haveDataSlot(QByteArray dataArray, bool dataAtEnd, qint64 dataSize)
+ {
+ wantDataPending = false;
+
+ m_dataArray = dataArray;
+ m_data = const_cast<char*>(m_dataArray.constData());
+ m_amount = dataArray.size();
+
+ m_atEnd = dataAtEnd;
+ m_size = dataSize;
+
+ // This will tell the HTTP code (QHttpNetworkConnectionChannel) that we have data available now
+ emit readyRead();
+ }
+
+signals:
+ // void readyRead(); in parent class
+ // void readProgress(qint64 current, qint64 total); happens in the main thread with the real bytedevice
+
+ // to main thread:
+ void wantData(qint64);
+ void processedData(qint64);
+ void resetData(bool *b);
+};
+
+QT_END_NAMESPACE
+
+#endif // QHTTPTHREADDELEGATE_H