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112 lines
3.4 KiB
112 lines
3.4 KiB
/*
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* nheko Copyright (C) 2017 Konstantinos Sideris <siderisk@auth.gr>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <QDir>
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#include <QMap>
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#include <json.hpp>
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#include <lmdb++.h>
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#include <mtx/responses.hpp>
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#include "RoomState.h"
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//! Used to uniquely identify a list of read receipts.
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struct ReadReceiptKey
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{
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std::string event_id;
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std::string room_id;
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};
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inline void
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to_json(json &j, const ReadReceiptKey &key)
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{
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j = json{{"event_id", key.event_id}, {"room_id", key.room_id}};
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}
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inline void
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from_json(const json &j, ReadReceiptKey &key)
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{
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key.event_id = j.at("event_id").get<std::string>();
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key.room_id = j.at("room_id").get<std::string>();
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}
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class Cache : public QObject
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{
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Q_OBJECT
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public:
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Cache(const QString &userId, QObject *parent = nullptr);
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void setState(const QString &nextBatchToken,
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const QMap<QString, QSharedPointer<RoomState>> &states);
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bool isInitialized() const;
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QString nextBatchToken() const;
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void states();
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using Invites = std::map<std::string, mtx::responses::InvitedRoom>;
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Invites invites();
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void setInvites(const Invites &invites);
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void deleteData();
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void unmount() { isMounted_ = false; };
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void removeRoom(const QString &roomid);
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void removeInvite(const QString &roomid);
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void setup();
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bool isFormatValid();
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void setCurrentFormat();
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//! Adds a user to the read list for the given event.
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//!
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//! There should be only one user id present in a receipt list per room.
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//! The user id should be removed from any other lists.
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using Receipts = std::map<std::string, std::map<std::string, uint64_t>>;
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void updateReadReceipt(const std::string &room_id, const Receipts &receipts);
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//! Retrieve all the read receipts for the given event id and room.
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//!
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//! Returns a map of user ids and the time of the read receipt in milliseconds.
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using UserReceipts = std::multimap<uint64_t, std::string, std::greater<uint64_t>>;
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UserReceipts readReceipts(const QString &event_id, const QString &room_id);
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QByteArray image(const QString &url) const;
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void saveImage(const QString &url, const QByteArray &data);
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signals:
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void statesLoaded(QMap<QString, RoomState> states);
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private:
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void setNextBatchToken(lmdb::txn &txn, const QString &token);
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void insertRoomState(lmdb::txn &txn,
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const QString &roomid,
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const QSharedPointer<RoomState> &state);
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lmdb::env env_;
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lmdb::dbi stateDb_;
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lmdb::dbi roomDb_;
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lmdb::dbi invitesDb_;
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lmdb::dbi imagesDb_;
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lmdb::dbi readReceiptsDb_;
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bool isMounted_;
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QString userId_;
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QString cacheDirectory_;
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};
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