vkauthmanager.h

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/
 
#pragma once
 
#include <functional>
#include <variant>
#include <QObject>
#include <QDateTime>
#include <QUrl>
#include <interfaces/core/icoreproxy.h>
#include <util/sll/util.h>
#include <util/sll/eitherfwd.h>
#include "svcauthconfig.h"
 
class QNetworkReply;
class QTimer;
 
template<typename>
class QFuture;
 
class IWebWidget;
 
namespace LC::Util
{
class QueueManager;
enum class QueuePriority;
 
class CustomCookieJar;
 
namespace SvcAuth
{
    class UTIL_SVCAUTH_API VkAuthManager : public QObject
    {
        Q_OBJECT
 
        ICoreProxy_ptr Proxy_;
 
        const QString AccountHR_;
 
        std::unique_ptr<IWebWidget> Browser_;
 
        QNetworkAccessManager * const AuthNAM_;
        Util::CustomCookieJar * const Cookies_;
 
        QueueManager * const Queue_;
 
        QString Token_;
        QDateTime ReceivedAt_;
        qint32 ValidFor_ = 0;
 
        bool IsRequesting_ = false;
 
        const QString ID_;
        QUrl URL_;
 
        bool IsRequestScheduled_ = false;
        QTimer * const ScheduleTimer_;
 
        bool SilentMode_ = false;
 
        bool HasTracked_ = false;
    public:
        using RequestQueue_t = QList<std::function<void (QString)>> ;
        using RequestQueue_ptr = RequestQueue_t*;
 
        using PrioRequestQueue_t = QList<std::pair<std::function<void (QString)>, QueuePriority>>;
        using PrioRequestQueue_ptr = PrioRequestQueue_t*;
 
        using ScheduleGuard_t = Util::DefaultScopeGuard;
    private:
        QList<RequestQueue_ptr> ManagedQueues_;
        QList<PrioRequestQueue_ptr> PrioManagedQueues_;
    public:
        VkAuthManager (const QString& accountName, const QString& clientId,
                const QStringList& scope, const QByteArray& cookies,
                const ICoreProxy_ptr&, QueueManager* = nullptr, QObject* = nullptr);
        ~VkAuthManager () override;
 
        bool IsAuthenticated () const;
        bool HadAuthentication () const;
 
        void UpdateScope (const QStringList&);
 
        void GetAuthKey ();
 
        struct SilentMode {};
        using AuthKeyError_t = std::variant<SilentMode>;
        using AuthKeyResult_t = Either<AuthKeyError_t, QString>;
 
        [[nodiscard]] QFuture<AuthKeyResult_t> GetAuthKeyFuture ();
 
        [[nodiscard]] ScheduleGuard_t ManageQueue (RequestQueue_ptr);
        [[nodiscard]] ScheduleGuard_t ManageQueue (PrioRequestQueue_ptr);
 
        void SetSilentMode (bool);
 
        void ClearAuthData ();
        void Reauth ();
    private:
        void InvokeQueues (const QString&);
 
        void RequestURL (const QUrl&);
        void RequestAuthKey ();
        bool CheckReply (QUrl);
        bool CheckError (const QUrl&);
 
        void ScheduleTrack (const QString&);
        void HandleGotForm (QNetworkReply*);
    private slots:
        void handleUrlChanged (const QUrl&);
    signals:
        void gotAuthKey (const QString&);
        void cookiesChanged (const QByteArray&);
        void authCanceled ();
        void justAuthenticated ();
    };
}
}