Source/WebCore/workers/service/ServiceWorkerJobData.cpp

/*
 * Copyright (C) 2017 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "ServiceWorkerJobData.h"

#if ENABLE(SERVICE_WORKER)

namespace WebCore {

static inline ServiceWorkerOrClientIdentifier serviceWorkerOrClientIdentifier(SWServerConnectionIdentifier connectionIdentifier, const DocumentOrWorkerIdentifier& localSourceContext)
{
    return WTF::switchOn(localSourceContext, [&](DocumentIdentifier documentIdentifier) -> ServiceWorkerOrClientIdentifier {
        return ServiceWorkerClientIdentifier { connectionIdentifier, documentIdentifier };
    }, [&](ServiceWorkerIdentifier serviceWorkerIdentifier) -> ServiceWorkerOrClientIdentifier {
        return serviceWorkerIdentifier;
    });
}

ServiceWorkerJobData::ServiceWorkerJobData(SWServerConnectionIdentifier connectionIdentifier, const DocumentOrWorkerIdentifier& localSourceContext)
    : sourceContext(serviceWorkerOrClientIdentifier(connectionIdentifier, localSourceContext))
    , m_identifier { connectionIdentifier, ServiceWorkerJobIdentifier::generateThreadSafe() }
{
}

ServiceWorkerJobData::ServiceWorkerJobData(Identifier identifier, const DocumentOrWorkerIdentifier& localSourceContext)
    : sourceContext(serviceWorkerOrClientIdentifier(identifier.connectionIdentifier, localSourceContext))
    , m_identifier { identifier }
{
}

ServiceWorkerRegistrationKey ServiceWorkerJobData::registrationKey() const
{
    URL scope = scopeURL;
    scope.removeFragmentIdentifier();
    return { SecurityOriginData { topOrigin }, WTFMove(scope) };
}

std::optional<ServiceWorkerClientIdentifier> ServiceWorkerJobData::serviceWorkerPageIdentifier() const
{
    if (isFromServiceWorkerPage && std::holds_alternative<ServiceWorkerClientIdentifier>(sourceContext))
        return std::get<ServiceWorkerClientIdentifier>(sourceContext);
    return std::nullopt;
}

ServiceWorkerJobData ServiceWorkerJobData::isolatedCopy() const
{
    ServiceWorkerJobData result;
    result.m_identifier = identifier();
    result.sourceContext = sourceContext;
    result.workerType = workerType;
    result.type = type;
    result.isFromServiceWorkerPage = isFromServiceWorkerPage;

    result.scriptURL = scriptURL.isolatedCopy();
    result.clientCreationURL = clientCreationURL.isolatedCopy();
    result.topOrigin = topOrigin.isolatedCopy();
    result.scopeURL = scopeURL.isolatedCopy();
    result.registrationOptions = registrationOptions.isolatedCopy();

    return result;
}

// https://w3c.github.io/ServiceWorker/#dfn-job-equivalent
bool ServiceWorkerJobData::isEquivalent(const ServiceWorkerJobData& job) const
{
    if (type != job.type)
        return false;

    switch (type) {
    case ServiceWorkerJobType::Register:
    case ServiceWorkerJobType::Update:
        return scopeURL == job.scopeURL
            && scriptURL == job.scriptURL
            && workerType == job.workerType
            && registrationOptions.updateViaCache == job.registrationOptions.updateViaCache;
    case ServiceWorkerJobType::Unregister:
        return scopeURL == job.scopeURL;
    }
    return false;
}

} // namespace WebCore

#endif // ENABLE(SERVICE_WORKER)