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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 382 insertions, 0 deletions

diff --git a/src/network/access/qnetworkaccessbackend.cpp b/src/network/access/qnetworkaccessbackend.cpp
new file mode 100644
index 0000000000..6220abed02
--- /dev/null
+++ b/src/network/access/qnetworkaccessbackend.cpp
@@ -0,0 +1,382 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qnetworkaccessbackend_p.h"
+#include "qnetworkaccessmanager_p.h"
+#include "qnetworkrequest.h"
+#include "qnetworkreply.h"
+#include "qnetworkreply_p.h"
+#include "QtCore/qhash.h"
+#include "QtCore/qmutex.h"
+#include "QtNetwork/private/qnetworksession_p.h"
+
+#include "qnetworkaccesscachebackend_p.h"
+#include "qabstractnetworkcache.h"
+#include "qhostinfo.h"
+
+#include "private/qnoncontiguousbytedevice_p.h"
+
+QT_BEGIN_NAMESPACE
+
+static bool factoryDataShutdown = false;
+class QNetworkAccessBackendFactoryData: public QList<QNetworkAccessBackendFactory *>
+{
+public:
+    QNetworkAccessBackendFactoryData() : mutex(QMutex::Recursive) { }
+    ~QNetworkAccessBackendFactoryData()
+    {
+        QMutexLocker locker(&mutex); // why do we need to lock?
+        factoryDataShutdown = true;
+    }
+
+    QMutex mutex;
+};
+Q_GLOBAL_STATIC(QNetworkAccessBackendFactoryData, factoryData)
+
+QNetworkAccessBackendFactory::QNetworkAccessBackendFactory()
+{
+    QMutexLocker locker(&factoryData()->mutex);
+    factoryData()->append(this);
+}
+
+QNetworkAccessBackendFactory::~QNetworkAccessBackendFactory()
+{
+    if (!factoryDataShutdown) {
+        QMutexLocker locker(&factoryData()->mutex);
+        factoryData()->removeAll(this);
+    }
+}
+
+QNetworkAccessBackend *QNetworkAccessManagerPrivate::findBackend(QNetworkAccessManager::Operation op,
+                                                                 const QNetworkRequest &request)
+{
+    if (!factoryDataShutdown) {
+        QMutexLocker locker(&factoryData()->mutex);
+        QNetworkAccessBackendFactoryData::ConstIterator it = factoryData()->constBegin(),
+                                                           end = factoryData()->constEnd();
+        while (it != end) {
+            QNetworkAccessBackend *backend = (*it)->create(op, request);
+            if (backend) {
+                backend->manager = this;
+                return backend; // found a factory that handled our request
+            }
+            ++it;
+        }
+    }
+    return 0;
+}
+
+QNonContiguousByteDevice* QNetworkAccessBackend::createUploadByteDevice()
+{
+    if (reply->outgoingDataBuffer)
+        uploadByteDevice = QSharedPointer<QNonContiguousByteDevice>(QNonContiguousByteDeviceFactory::create(reply->outgoingDataBuffer));
+    else if (reply->outgoingData) {
+        uploadByteDevice = QSharedPointer<QNonContiguousByteDevice>(QNonContiguousByteDeviceFactory::create(reply->outgoingData));
+    } else {
+        return 0;
+    }
+
+    bool bufferDisallowed =
+            reply->request.attribute(QNetworkRequest::DoNotBufferUploadDataAttribute,
+                          QVariant(false)) == QVariant(true);
+    if (bufferDisallowed)
+        uploadByteDevice->disableReset();
+
+    // We want signal emissions only for normal asynchronous uploads
+    if (!isSynchronous())
+        connect(uploadByteDevice.data(), SIGNAL(readProgress(qint64,qint64)), this, SLOT(emitReplyUploadProgress(qint64,qint64)));
+
+    return uploadByteDevice.data();
+}
+
+// need to have this function since the reply is a private member variable
+// and the special backends need to access this.
+void QNetworkAccessBackend::emitReplyUploadProgress(qint64 bytesSent, qint64 bytesTotal)
+{
+    if (reply->isFinished)
+        return;
+    reply->emitUploadProgress(bytesSent, bytesTotal);
+}
+
+QNetworkAccessBackend::QNetworkAccessBackend()
+    : manager(0)
+    , reply(0)
+    , synchronous(false)
+{
+}
+
+QNetworkAccessBackend::~QNetworkAccessBackend()
+{
+}
+
+void QNetworkAccessBackend::downstreamReadyWrite()
+{
+    // do nothing
+}
+
+void QNetworkAccessBackend::setDownstreamLimited(bool b)
+{
+    Q_UNUSED(b);
+    // do nothing
+}
+
+void QNetworkAccessBackend::copyFinished(QIODevice *)
+{
+    // do nothing
+}
+
+void QNetworkAccessBackend::ignoreSslErrors()
+{
+    // do nothing
+}
+
+void QNetworkAccessBackend::ignoreSslErrors(const QList<QSslError> &errors)
+{
+    Q_UNUSED(errors);
+    // do nothing
+}
+
+void QNetworkAccessBackend::fetchSslConfiguration(QSslConfiguration &) const
+{
+    // do nothing
+}
+
+void QNetworkAccessBackend::setSslConfiguration(const QSslConfiguration &)
+{
+    // do nothing
+}
+
+QNetworkCacheMetaData QNetworkAccessBackend::fetchCacheMetaData(const QNetworkCacheMetaData &) const
+{
+    return QNetworkCacheMetaData();
+}
+
+QNetworkAccessManager::Operation QNetworkAccessBackend::operation() const
+{
+    return reply->operation;
+}
+
+QNetworkRequest QNetworkAccessBackend::request() const
+{
+    return reply->request;
+}
+
+#ifndef QT_NO_NETWORKPROXY
+QList<QNetworkProxy> QNetworkAccessBackend::proxyList() const
+{
+    return reply->proxyList;
+}
+#endif
+
+QAbstractNetworkCache *QNetworkAccessBackend::networkCache() const
+{
+    if (!manager)
+        return 0;
+    return manager->networkCache;
+}
+
+void QNetworkAccessBackend::setCachingEnabled(bool enable)
+{
+    reply->setCachingEnabled(enable);
+}
+
+bool QNetworkAccessBackend::isCachingEnabled() const
+{
+    return reply->isCachingEnabled();
+}
+
+qint64 QNetworkAccessBackend::nextDownstreamBlockSize() const
+{
+    return reply->nextDownstreamBlockSize();
+}
+
+void QNetworkAccessBackend::writeDownstreamData(QByteDataBuffer &list)
+{
+    reply->appendDownstreamData(list);
+}
+
+void QNetworkAccessBackend::writeDownstreamData(QIODevice *data)
+{
+    reply->appendDownstreamData(data);
+}
+
+// not actually appending data, it was already written to the user buffer
+void QNetworkAccessBackend::writeDownstreamDataDownloadBuffer(qint64 bytesReceived, qint64 bytesTotal)
+{
+    reply->appendDownstreamDataDownloadBuffer(bytesReceived, bytesTotal);
+}
+
+char* QNetworkAccessBackend::getDownloadBuffer(qint64 size)
+{
+    return reply->getDownloadBuffer(size);
+}
+
+QVariant QNetworkAccessBackend::header(QNetworkRequest::KnownHeaders header) const
+{
+    return reply->q_func()->header(header);
+}
+
+void QNetworkAccessBackend::setHeader(QNetworkRequest::KnownHeaders header, const QVariant &value)
+{
+    reply->setCookedHeader(header, value);
+}
+
+bool QNetworkAccessBackend::hasRawHeader(const QByteArray &headerName) const
+{
+    return reply->q_func()->hasRawHeader(headerName);
+}
+
+QByteArray QNetworkAccessBackend::rawHeader(const QByteArray &headerName) const
+{
+    return reply->q_func()->rawHeader(headerName);
+}
+
+QList<QByteArray> QNetworkAccessBackend::rawHeaderList() const
+{
+    return reply->q_func()->rawHeaderList();
+}
+
+void QNetworkAccessBackend::setRawHeader(const QByteArray &headerName, const QByteArray &headerValue)
+{
+    reply->setRawHeader(headerName, headerValue);
+}
+
+QVariant QNetworkAccessBackend::attribute(QNetworkRequest::Attribute code) const
+{
+    return reply->q_func()->attribute(code);
+}
+
+void QNetworkAccessBackend::setAttribute(QNetworkRequest::Attribute code, const QVariant &value)
+{
+    if (value.isValid())
+        reply->attributes.insert(code, value);
+    else
+        reply->attributes.remove(code);
+}
+QUrl QNetworkAccessBackend::url() const
+{
+    return reply->url;
+}
+
+void QNetworkAccessBackend::setUrl(const QUrl &url)
+{
+    reply->url = url;
+}
+
+void QNetworkAccessBackend::finished()
+{
+    reply->finished();
+}
+
+void QNetworkAccessBackend::error(QNetworkReply::NetworkError code, const QString &errorString)
+{
+    reply->error(code, errorString);
+}
+
+#ifndef QT_NO_NETWORKPROXY
+void QNetworkAccessBackend::proxyAuthenticationRequired(const QNetworkProxy &proxy,
+                                                        QAuthenticator *authenticator)
+{
+    manager->proxyAuthenticationRequired(this, proxy, authenticator);
+}
+#endif
+
+void QNetworkAccessBackend::authenticationRequired(QAuthenticator *authenticator)
+{
+    manager->authenticationRequired(this, authenticator);
+}
+
+void QNetworkAccessBackend::metaDataChanged()
+{
+    reply->metaDataChanged();
+}
+
+void QNetworkAccessBackend::redirectionRequested(const QUrl &target)
+{
+    reply->redirectionRequested(target);
+}
+
+void QNetworkAccessBackend::sslErrors(const QList<QSslError> &errors)
+{
+#ifndef QT_NO_OPENSSL
+    reply->sslErrors(errors);
+#else
+    Q_UNUSED(errors);
+#endif
+}
+
+#ifndef QT_NO_BEARERMANAGEMENT
+
+/*!
+    Starts the backend.  Returns true if the backend is started.  Returns false if the backend
+    could not be started due to an unopened or roaming session.  The caller should recall this
+    function once the session has been opened or the roaming process has finished.
+*/
+bool QNetworkAccessBackend::start()
+{
+    if (!manager->networkSession) {
+        open();
+        return true;
+    }
+
+    // This is not ideal.
+    const QString host = reply->url.host();
+    if (host == QLatin1String("localhost") ||
+        QHostAddress(host) == QHostAddress::LocalHost ||
+        QHostAddress(host) == QHostAddress::LocalHostIPv6) {
+        // Don't need an open session for localhost access.
+        open();
+        return true;
+    }
+
+    if (manager->networkSession->isOpen() &&
+        manager->networkSession->state() == QNetworkSession::Connected) {
+        //copy network session down to the backend
+        setProperty("_q_networksession", QVariant::fromValue(manager->networkSession));
+        open();
+        return true;
+    }
+
+    return false;
+}
+#endif
+
+QT_END_NAMESPACE