lib/events/encryptionevent.cpp


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//
// Created by rusakov on 26/09/2017.
// Contributed by andreev on 27/06/2019.
//

#include "encryptionevent.h"

#include "converters.h"
#include "logging.h"
#include "e2ee.h"

#include <array>

static const std::array<QString, 1> encryptionStrings = { {
    QMatrixClient::MegolmV1AesSha2AlgoKey
} };

namespace QMatrixClient {
    template <>
    struct JsonConverter<EncryptionType>
    {
        static EncryptionType load(const QJsonValue& jv)
        {
            const auto& encryptionString = jv.toString();
            for (auto it = encryptionStrings.begin();
                    it != encryptionStrings.end(); ++it)
                if (encryptionString == *it)
                    return EncryptionType(it - encryptionStrings.begin());

            qCWarning(EVENTS) << "Unknown EncryptionType: " << encryptionString;
            return EncryptionType::Undefined;
        }
    };
}

using namespace QMatrixClient;

EncryptionEventContent::EncryptionEventContent(const QJsonObject& json)
    : encryption(fromJson<EncryptionType>(json["algorithm"_ls]))
    , algorithm(sanitized(json[AlgorithmKeyL].toString()))
    , rotationPeriodMs(json[RotationPeriodMsKeyL].toInt(604800000))
    , rotationPeriodMsgs(json[RotationPeriodMsgsKeyL].toInt(100))
{ }

void EncryptionEventContent::fillJson(QJsonObject* o) const
{
    Q_ASSERT(o);
    Q_ASSERT_X(encryption != EncryptionType::Undefined, __FUNCTION__,
             "The key 'algorithm' must be explicit in EncryptionEventContent");
    if (encryption != EncryptionType::Undefined)
        o->insert(AlgorithmKey, algorithm);
    o->insert(RotationPeriodMsKey, rotationPeriodMs);
    o->insert(RotationPeriodMsgsKey, rotationPeriodMsgs);
}