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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QNETWORKACCESSBACKEND_P_H
#define QNETWORKACCESSBACKEND_P_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/qtnetworkglobal.h>
#include <QtNetwork/qnetworkrequest.h>
#include <QtNetwork/qnetworkaccessmanager.h>
#include <QtNetwork/qnetworkreply.h>
#include <QtCore/qobject.h>
#include <QtCore/qflags.h>
#include <QtCore/qbytearrayview.h>
#include <QtCore/private/qglobal_p.h>
#if QT_CONFIG(ssl)
#include <QtNetwork/qsslconfiguration.h>
#endif
QT_BEGIN_NAMESPACE
class QNetworkReplyImplPrivate;
class QNetworkAccessManagerPrivate;
class QNetworkAccessBackendPrivate;
class Q_NETWORK_EXPORT QNetworkAccessBackend : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QNetworkAccessBackend);
public:
enum class TargetType {
Networked = 0x1, // We need to query for proxy in case it is needed
Local = 0x2, // Local file, generated data or local device
};
Q_ENUM(TargetType)
Q_DECLARE_FLAGS(TargetTypes, TargetType)
enum class SecurityFeature {
None = 0x0,
TLS = 0x1, // We need to set QSslConfiguration
};
Q_ENUM(SecurityFeature)
Q_DECLARE_FLAGS(SecurityFeatures, SecurityFeature)
enum class IOFeature {
None = 0x0,
ZeroCopy = 0x1, // readPointer and advanceReadPointer() is available!
NeedResetableUpload = 0x2, // Need to buffer upload data
SupportsSynchronousMode = 0x4, // Used for XMLHttpRequest
};
Q_ENUM(IOFeature)
Q_DECLARE_FLAGS(IOFeatures, IOFeature)
QNetworkAccessBackend(TargetTypes targetTypes, SecurityFeatures securityFeatures,
IOFeatures ioFeatures);
QNetworkAccessBackend(TargetTypes targetTypes);
QNetworkAccessBackend(TargetTypes targetTypes, SecurityFeatures securityFeatures);
QNetworkAccessBackend(TargetTypes targetTypes, IOFeatures ioFeatures);
virtual ~QNetworkAccessBackend();
SecurityFeatures securityFeatures() const noexcept;
TargetTypes targetTypes() const noexcept;
IOFeatures ioFeatures() const noexcept;
inline bool needsResetableUploadData() const noexcept
{
return ioFeatures() & IOFeature::NeedResetableUpload;
}
virtual bool start();
virtual void open() = 0;
virtual void close() = 0;
#if QT_CONFIG(ssl)
virtual void setSslConfiguration(const QSslConfiguration &configuration);
virtual QSslConfiguration sslConfiguration() const;
#endif
virtual void ignoreSslErrors();
virtual void ignoreSslErrors(const QList<QSslError> &errors);
virtual qint64 bytesAvailable() const = 0;
virtual QByteArrayView readPointer();
virtual void advanceReadPointer(qint64 distance);
virtual qint64 read(char *data, qint64 maxlen);
virtual bool wantToRead();
#if QT_CONFIG(networkproxy)
QList<QNetworkProxy> proxyList() const;
#endif
QUrl url() const;
void setUrl(const QUrl &url);
QVariant header(QNetworkRequest::KnownHeaders header) const;
void setHeader(QNetworkRequest::KnownHeaders header, const QVariant &value);
QByteArray rawHeader(const QByteArray &header) const;
void setRawHeader(const QByteArray &header, const QByteArray &value);
QNetworkAccessManager::Operation operation() const;
bool isCachingEnabled() const;
void setCachingEnabled(bool canCache);
void setAttribute(QNetworkRequest::Attribute attribute, const QVariant &value);
QIODevice *createUploadByteDevice();
QIODevice *uploadByteDevice();
QAbstractNetworkCache *networkCache() const;
public slots:
void readyRead();
protected slots:
void finished();
void error(QNetworkReply::NetworkError code, const QString &errorString);
#ifndef QT_NO_NETWORKPROXY
void proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *auth);
#endif
void authenticationRequired(QAuthenticator *auth);
void metaDataChanged();
void redirectionRequested(const QUrl &destination);
private:
void setReplyPrivate(QNetworkReplyImplPrivate *reply);
void setManagerPrivate(QNetworkAccessManagerPrivate *manager);
bool isSynchronous() const;
void setSynchronous(bool synchronous);
friend class QNetworkAccessManager; // for setReplyPrivate
friend class QNetworkAccessManagerPrivate; // for setManagerPrivate
friend class QNetworkReplyImplPrivate; // for {set,is}Synchronous()
};
class Q_NETWORK_EXPORT QNetworkAccessBackendFactory : public QObject
{
Q_OBJECT
public:
QNetworkAccessBackendFactory();
virtual ~QNetworkAccessBackendFactory();
virtual QStringList supportedSchemes() const = 0;
virtual QNetworkAccessBackend *create(QNetworkAccessManager::Operation op,
const QNetworkRequest &request) const = 0;
};
#define QNetworkAccessBackendFactory_iid "org.qt-project.Qt.NetworkAccessBackendFactory"
Q_DECLARE_INTERFACE(QNetworkAccessBackendFactory, QNetworkAccessBackendFactory_iid);
QT_END_NAMESPACE
#endif
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