Source/WebKit/UIProcess/WebAuthentication/fido/CtapHidAuthenticator.cpp

/*
 * Copyright (C) 2018 Apple Inc. All rights reserved.
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#include "config.h"
#include "CtapHidAuthenticator.h"

#if ENABLE(WEB_AUTHN) && PLATFORM(MAC)

#include "CtapHidDriver.h"
#include <WebCore/DeviceRequestConverter.h>
#include <WebCore/DeviceResponseConverter.h>
#include <WebCore/ExceptionData.h>
#include <wtf/RunLoop.h>
#include <wtf/text/StringConcatenateNumbers.h>

namespace WebKit {
using namespace WebCore;
using namespace fido;

CtapHidAuthenticator::CtapHidAuthenticator(std::unique_ptr<CtapHidDriver>&& driver, AuthenticatorGetInfoResponse&& info)
    : m_driver(WTFMove(driver))
    , m_info(WTFMove(info))
{
    // FIXME(191520): We need a way to convert std::unique_ptr to UniqueRef.
    ASSERT(m_driver);
}

void CtapHidAuthenticator::makeCredential()
{
    auto cborCmd = encodeMakeCredenitalRequestAsCBOR(requestData().hash, requestData().creationOptions, m_info.options().userVerificationAvailability());
    m_driver->transact(WTFMove(cborCmd), [weakThis = makeWeakPtr(*this)](Vector<uint8_t>&& data) {
        ASSERT(RunLoop::isMain());
        if (!weakThis)
            return;
        weakThis->continueMakeCredentialAfterResponseReceived(WTFMove(data));
    });
}

void CtapHidAuthenticator::continueMakeCredentialAfterResponseReceived(Vector<uint8_t>&& data) const
{
    auto response = readCTAPMakeCredentialResponse(data);
    if (!response) {
        receiveRespond(ExceptionData { UnknownError, makeString("Unknown internal error. Error code: ", data.size() == 1 ? data[0] : -1) });
        return;
    }
    receiveRespond(WTFMove(*response));
}

void CtapHidAuthenticator::getAssertion()
{
    auto cborCmd = encodeGetAssertionRequestAsCBOR(requestData().hash, requestData().requestOptions, m_info.options().userVerificationAvailability());
    m_driver->transact(WTFMove(cborCmd), [weakThis = makeWeakPtr(*this)](Vector<uint8_t>&& data) {
        ASSERT(RunLoop::isMain());
        if (!weakThis)
            return;
        weakThis->continueGetAssertionAfterResponseReceived(WTFMove(data));
    });
}

void CtapHidAuthenticator::continueGetAssertionAfterResponseReceived(Vector<uint8_t>&& data) const
{
    auto response = readCTAPGetAssertionResponse(data);
    if (!response) {
        receiveRespond(ExceptionData { UnknownError, makeString("Unknown internal error. Error code: ", data.size() == 1 ? data[0] : -1) });
        return;
    }
    receiveRespond(WTFMove(*response));
}

} // namespace WebKit

#endif // ENABLE(WEB_AUTHN) && PLATFORM(MAC)