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/*
* Copyright (C) 2020 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. ``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
* 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
#include "EventTarget.h"
#include "FetchOptions.h"
#include "ScriptExecutionContext.h"
#include "WorkerThreadType.h"
#include <pal/SessionID.h>
namespace WebCore {
class EventLoopTaskGroup;
class ScriptModuleLoader;
class WorkerEventLoop;
class WorkerInspectorController;
class WorkerOrWorkletScriptController;
class WorkerOrWorkletThread;
enum class AdvancedPrivacyProtections : uint16_t;
enum class NoiseInjectionPolicy : uint8_t;
class WorkerOrWorkletGlobalScope : public RefCounted<WorkerOrWorkletGlobalScope>, public ScriptExecutionContext, public EventTarget {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(WorkerOrWorkletGlobalScope);
WTF_MAKE_NONCOPYABLE(WorkerOrWorkletGlobalScope);
public:
virtual ~WorkerOrWorkletGlobalScope();
USING_CAN_MAKE_WEAKPTR(ScriptExecutionContext);
bool isClosing() const { return m_isClosing; }
WorkerOrWorkletThread* workerOrWorkletThread() const { return m_thread; }
WorkerOrWorkletScriptController* script() const { return m_script.get(); }
void clearScript();
JSC::VM& vm() final;
JSC::VM* vmIfExists() const final;
WorkerInspectorController& inspectorController() const { return m_inspectorController; }
ScriptModuleLoader& moduleLoader() { return m_moduleLoader; }
// ScriptExecutionContext.
EventLoopTaskGroup& eventLoop() final;
bool isContextThread() const final;
void postTask(Task&&) final; // Executes the task on context's thread asynchronously.
std::optional<PAL::SessionID> sessionID() const final { return m_sessionID; }
// Defined specifcially for WorkerOrWorkletGlobalScope for cooperation with
// WorkerEventLoop and WorkerRunLoop, not part of ScriptExecutionContext.
void postTaskForMode(Task&&, const String&);
virtual void prepareForDestruction();
using RefCounted::ref;
using RefCounted::deref;
virtual void suspend() { }
virtual void resume() { }
virtual FetchOptions::Destination destination() const = 0;
ReferrerPolicy referrerPolicy() const final { return m_referrerPolicy; }
std::optional<uint64_t> noiseInjectionHashSalt() const final { return m_noiseInjectionHashSalt; }
OptionSet<NoiseInjectionPolicy> noiseInjectionPolicies() const final;
OptionSet<AdvancedPrivacyProtections> advancedPrivacyProtections() const final { return m_advancedPrivacyProtections; }
protected:
WorkerOrWorkletGlobalScope(WorkerThreadType, PAL::SessionID, Ref<JSC::VM>&&, ReferrerPolicy, WorkerOrWorkletThread*, std::optional<uint64_t>, OptionSet<AdvancedPrivacyProtections>, std::optional<ScriptExecutionContextIdentifier> = std::nullopt);
// ScriptExecutionContext.
bool isJSExecutionForbidden() const final;
void markAsClosing() { m_isClosing = true; }
private:
// ScriptExecutionContext.
void disableEval(const String& errorMessage) final;
void disableWebAssembly(const String& errorMessage) final;
void setTrustedTypesEnforcement(JSC::TrustedTypesEnforcement) final;
// EventTarget.
ScriptExecutionContext* scriptExecutionContext() const final { return const_cast<WorkerOrWorkletGlobalScope*>(this); }
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
#if ENABLE(NOTIFICATIONS)
NotificationClient* notificationClient() override { return nullptr; }
#endif
std::unique_ptr<WorkerOrWorkletScriptController> m_script;
const UniqueRef<ScriptModuleLoader> m_moduleLoader;
WorkerOrWorkletThread* m_thread;
const RefPtr<WorkerEventLoop> m_eventLoop;
const std::unique_ptr<EventLoopTaskGroup> m_defaultTaskGroup;
const UniqueRef<WorkerInspectorController> m_inspectorController;
PAL::SessionID m_sessionID;
ReferrerPolicy m_referrerPolicy;
bool m_isClosing { false };
std::optional<uint64_t> m_noiseInjectionHashSalt;
OptionSet<AdvancedPrivacyProtections> m_advancedPrivacyProtections;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::WorkerOrWorkletGlobalScope)
static bool isType(const WebCore::ScriptExecutionContext& context) { return context.isWorkerOrWorkletGlobalScope(); }
SPECIALIZE_TYPE_TRAITS_END()
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