qrestaccessmanager_p.h

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// Copyright (C) 2023 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 QRESTACCESSMANAGER_P_H
#define QRESTACCESSMANAGER_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 "qrestaccessmanager.h"
#include "private/qobject_p.h"
 
#include <QtNetwork/qnetworkaccessmanager.h>
 
#include <QtCore/qjsonarray.h>
#include <QtCore/qhash.h>
#include <QtCore/qjsondocument.h>
#include <QtCore/qjsonobject.h>
#include <QtCore/qxpfunctional.h>
 
QT_BEGIN_NAMESPACE
 
class QRestReply;
class QRestAccessManagerPrivate : public QObjectPrivate
{
public:
    QRestAccessManagerPrivate();
    ~QRestAccessManagerPrivate() override;
 
    QNetworkReply* createActiveRequest(QNetworkReply *reply, const QObject *contextObject,
                                       QtPrivate::QSlotObjectBase *slot);
    void handleReplyFinished(QNetworkReply *reply);
 
    using ReqOpRef = qxp::function_ref<QNetworkReply*(QNetworkAccessManager*) const>;
    QNetworkReply *executeRequest(ReqOpRef requestOperation,
                               const QObject *context, QtPrivate::QSlotObjectBase *slot)
    {
        if (!qnam)
            return warnNoAccessManager();
        verifyThreadAffinity(context);
        QNetworkReply *reply = requestOperation(qnam);
        return createActiveRequest(reply, context, slot);
    }
 
    using ReqOpRefJson = qxp::function_ref<QNetworkReply*(QNetworkAccessManager*,
                                                          const QNetworkRequest &,
                                                          const QByteArray &) const>;
    QNetworkReply *executeRequest(ReqOpRefJson requestOperation, const QJsonDocument &jsonDoc,
                               const QNetworkRequest &request,
                               const QObject *context, QtPrivate::QSlotObjectBase *slot)
    {
        if (!qnam)
            return warnNoAccessManager();
        verifyThreadAffinity(context);
        QNetworkRequest req(request);
        auto h = req.headers();
        if (!h.contains(QHttpHeaders::WellKnownHeader::ContentType)) {
            h.append(QHttpHeaders::WellKnownHeader::ContentType,
                     QLatin1StringView{"application/json"});
        }
        req.setHeaders(std::move(h));
        QNetworkReply *reply = requestOperation(qnam, req, jsonDoc.toJson(QJsonDocument::Compact));
        return createActiveRequest(reply, context, slot);
    }
 
    void verifyThreadAffinity(const QObject *contextObject);
    Q_DECL_COLD_FUNCTION
    QNetworkReply* warnNoAccessManager();
 
    struct CallerInfo {
        QPointer<const QObject> contextObject = nullptr;
        QtPrivate::SlotObjSharedPtr slot;
    };
    QHash<QNetworkReply*, CallerInfo> activeRequests;
 
    QNetworkAccessManager *qnam = nullptr;
    bool deletesRepliesOnFinished = true;
    Q_DECLARE_PUBLIC(QRestAccessManager)
};
 
QT_END_NAMESPACE
 
#endif