vkauthmanager.h

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Boost Software License - Version 1.0 - August 17th, 2003
 *
 * Permission is hereby granted, free of charge, to any person or organization
 * obtaining a copy of the software and accompanying documentation covered by
 * this license (the "Software") to use, reproduce, display, distribute,
 * execute, and transmit the Software, and to prepare derivative works of the
 * Software, and to permit third-parties to whom the Software is furnished to
 * do so, all subject to the following:
 *
 * The copyright notices in the Software and this entire statement, including
 * the above license grant, this restriction and the following disclaimer,
 * must be included in all copies of the Software, in whole or in part, and
 * all derivative works of the Software, unless such copies or derivative
 * works are solely in the form of machine-executable object code generated by
 * a source language processor.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
 * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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#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 QTimer;
 
template<typename>
class QFuture;
 
namespace LC
{
namespace 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_;
 
        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<QPair<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,
                ICoreProxy_ptr, QueueManager* = nullptr, QObject* = nullptr);
 
        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);
    private:
        void InvokeQueues (const QString&);
 
        void RequestURL (const QUrl&);
        void RequestAuthKey ();
        bool CheckReply (QUrl);
        bool CheckError (const QUrl&);
 
        void ScheduleTrack (const QString&);
    public slots:
        void clearAuthData ();
        void reauth ();
    private slots:
        void execScheduledRequest ();
        void handleGotForm ();
        void handleViewUrlChanged (const QUrl&);
    signals:
        void gotAuthKey (const QString&);
        void cookiesChanged (const QByteArray&);
        void authCanceled ();
        void justAuthenticated ();
    };
}
}
}