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/*
* 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.
*/
#pragma once
#if ENABLE(SERVICE_WORKER)
#include "NavigationPreloadState.h"
#include "SWServer.h"
#include "ScriptExecutionContextIdentifier.h"
#include "ServiceWorkerRegistrationData.h"
#include "ServiceWorkerTypes.h"
#include "Timer.h"
#include <wtf/HashCountedSet.h>
#include <wtf/MonotonicTime.h>
#include <wtf/WallTime.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class SWServer;
class SWServerWorker;
enum class ServiceWorkerRegistrationState : uint8_t;
enum class ServiceWorkerState : uint8_t;
struct ExceptionData;
struct ServiceWorkerContextData;
enum class IsAppInitiated : bool { No, Yes };
class SWServerRegistration : public CanMakeWeakPtr<SWServerRegistration> {
WTF_MAKE_FAST_ALLOCATED;
public:
SWServerRegistration(SWServer&, const ServiceWorkerRegistrationKey&, ServiceWorkerUpdateViaCache, const URL& scopeURL, const URL& scriptURL, std::optional<ScriptExecutionContextIdentifier> serviceWorkerPageIdentifier, NavigationPreloadState&&);
~SWServerRegistration();
const ServiceWorkerRegistrationKey& key() const { return m_registrationKey; }
ServiceWorkerRegistrationIdentifier identifier() const { return m_identifier; }
SWServerWorker* getNewestWorker();
WEBCORE_EXPORT ServiceWorkerRegistrationData data() const;
void setLastUpdateTime(WallTime);
WallTime lastUpdateTime() const { return m_lastUpdateTime; }
bool isStale() const { return m_lastUpdateTime && (WallTime::now() - m_lastUpdateTime) > 86400_s; }
void setUpdateViaCache(ServiceWorkerUpdateViaCache);
ServiceWorkerUpdateViaCache updateViaCache() const { return m_updateViaCache; }
void updateRegistrationState(ServiceWorkerRegistrationState, SWServerWorker*);
void updateWorkerState(SWServerWorker&, ServiceWorkerState);
void fireUpdateFoundEvent();
void addClientServiceWorkerRegistration(SWServerConnectionIdentifier);
void removeClientServiceWorkerRegistration(SWServerConnectionIdentifier);
void setPreInstallationWorker(SWServerWorker*);
SWServerWorker* preInstallationWorker() const { return m_preInstallationWorker.get(); }
SWServerWorker* installingWorker() const { return m_installingWorker.get(); }
SWServerWorker* waitingWorker() const { return m_waitingWorker.get(); }
SWServerWorker* activeWorker() const { return m_activeWorker.get(); }
MonotonicTime creationTime() const { return m_creationTime; }
bool hasClientsUsingRegistration() const { return !m_clientsUsingRegistration.isEmpty(); }
void addClientUsingRegistration(const ScriptExecutionContextIdentifier&);
void removeClientUsingRegistration(const ScriptExecutionContextIdentifier&);
void unregisterServerConnection(SWServerConnectionIdentifier);
void notifyClientsOfControllerChange();
void controlClient(ScriptExecutionContextIdentifier);
void clear();
bool tryClear();
void tryActivate();
void didFinishActivation(ServiceWorkerIdentifier);
bool isUnregistered() const;
void forEachConnection(const Function<void(SWServer::Connection&)>&);
WEBCORE_EXPORT bool shouldSoftUpdate(const FetchOptions&) const;
WEBCORE_EXPORT void scheduleSoftUpdate(IsAppInitiated);
static constexpr Seconds softUpdateDelay { 1_s };
URL scopeURLWithoutFragment() const { return m_scopeURL; }
URL scriptURL() const { return m_scriptURL; }
bool isAppInitiated() const { return m_isAppInitiated; }
std::optional<ScriptExecutionContextIdentifier> serviceWorkerPageIdentifier() const { return m_serviceWorkerPageIdentifier; }
WEBCORE_EXPORT std::optional<ExceptionData> enableNavigationPreload();
WEBCORE_EXPORT std::optional<ExceptionData> disableNavigationPreload();
WEBCORE_EXPORT std::optional<ExceptionData> setNavigationPreloadHeaderValue(String&&);
const NavigationPreloadState& navigationPreloadState() const { return m_preloadState; }
private:
void activate();
void handleClientUnload();
void softUpdate();
ServiceWorkerRegistrationIdentifier m_identifier;
ServiceWorkerRegistrationKey m_registrationKey;
ServiceWorkerUpdateViaCache m_updateViaCache;
URL m_scopeURL;
URL m_scriptURL;
std::optional<ScriptExecutionContextIdentifier> m_serviceWorkerPageIdentifier;
RefPtr<SWServerWorker> m_preInstallationWorker; // Implementation detail, not part of the specification.
RefPtr<SWServerWorker> m_installingWorker;
RefPtr<SWServerWorker> m_waitingWorker;
RefPtr<SWServerWorker> m_activeWorker;
WallTime m_lastUpdateTime;
HashCountedSet<SWServerConnectionIdentifier> m_connectionsWithClientRegistrations;
SWServer& m_server;
MonotonicTime m_creationTime;
HashMap<SWServerConnectionIdentifier, HashSet<ScriptExecutionContextIdentifier>> m_clientsUsingRegistration;
WebCore::Timer m_softUpdateTimer;
bool m_isAppInitiated { true };
NavigationPreloadState m_preloadState;
};
} // namespace WebCore
#endif // ENABLE(SERVICE_WORKER)
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