Source/WebCore/Modules/webauthn/AuthenticationExtensionsClientOutputs.cpp

/*
 * Copyright (C) 2022 Apple Inc. All rights reserved.
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#include "config.h"
#include "AuthenticationExtensionsClientOutputs.h"

#if ENABLE(WEB_AUTHN)

#include "CBORReader.h"
#include "CBORWriter.h"

namespace WebCore {

std::optional<AuthenticationExtensionsClientOutputs> AuthenticationExtensionsClientOutputs::fromCBOR(const Vector<uint8_t>& buffer)
{
    std::optional<cbor::CBORValue> decodedValue = cbor::CBORReader::read(buffer);
    if (!decodedValue || !decodedValue->isMap())
        return std::nullopt;
    AuthenticationExtensionsClientOutputs clientOutputs;

    const auto& decodedMap = decodedValue->getMap();
    auto it = decodedMap.find(cbor::CBORValue("appid"));
    if (it != decodedMap.end() && it->second.isBool())
        clientOutputs.appid = it->second.getBool();
    it = decodedMap.find(cbor::CBORValue("credProps"));
    if (it != decodedMap.end() && it->second.isMap()) {
        CredentialPropertiesOutput credProps;
        it = it->second.getMap().find(cbor::CBORValue("rk"));
        if (it != decodedMap.end() && it->second.isBool())
            credProps.rk = it->second.getBool();
        clientOutputs.credProps = credProps;
    }

    return clientOutputs;
}

Vector<uint8_t> AuthenticationExtensionsClientOutputs::toCBOR() const
{
    cbor::CBORValue::MapValue clientOutputsMap;
    if (appid)
        clientOutputsMap[cbor::CBORValue("appid")] = cbor::CBORValue(*appid);
    if (credProps) {
        cbor::CBORValue::MapValue credPropsMap;
        credPropsMap[cbor::CBORValue("rk")] = cbor::CBORValue(credProps->rk);
        clientOutputsMap[cbor::CBORValue("credProps")] = cbor::CBORValue(credPropsMap);
    }

    auto clientOutputs = cbor::CBORWriter::write(cbor::CBORValue(WTFMove(clientOutputsMap)));
    ASSERT(clientOutputs);

    return *clientOutputs;
}

} // namespace WebCore

#endif // ENABLE(WEB_AUTHN)