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/*
* Copyright (C) 2008-2017 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. ``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 "Base64Utilities.h"
#include "EventTarget.h"
#include "ScriptExecutionContext.h"
#include "Supplementable.h"
#include "URL.h"
#include "WorkerEventQueue.h"
#include "WorkerScriptController.h"
#include <inspector/ConsoleMessage.h>
#include <memory>
namespace WebCore {
class ContentSecurityPolicyResponseHeaders;
class Crypto;
class Performance;
class ScheduledAction;
class WorkerInspectorController;
class WorkerLocation;
class WorkerNavigator;
class WorkerThread;
namespace IDBClient {
class IDBConnectionProxy;
}
class WorkerGlobalScope : public RefCounted<WorkerGlobalScope>, public Supplementable<WorkerGlobalScope>, public ScriptExecutionContext, public EventTargetWithInlineData, public Base64Utilities {
public:
virtual ~WorkerGlobalScope();
virtual bool isDedicatedWorkerGlobalScope() const { return false; }
const URL& url() const final { return m_url; }
String origin() const;
#if ENABLE(INDEXED_DATABASE)
IDBClient::IDBConnectionProxy* idbConnectionProxy() final;
void stopIndexedDatabase();
#endif
WorkerScriptController* script() { return m_script.get(); }
void clearScript() { m_script = nullptr; }
WorkerInspectorController& inspectorController() const { return *m_inspectorController; }
WorkerThread& thread() const { return m_thread; }
using ScriptExecutionContext::hasPendingActivity;
void postTask(Task&&) final; // Executes the task on context's thread asynchronously.
WorkerGlobalScope& self() { return *this; }
WorkerLocation& location() const;
void close();
virtual ExceptionOr<void> importScripts(const Vector<String>& urls);
WorkerNavigator& navigator();
ExceptionOr<int> setTimeout(JSC::ExecState&, std::unique_ptr<ScheduledAction>, int timeout, Vector<JSC::Strong<JSC::Unknown>>&& arguments);
void clearTimeout(int timeoutId);
ExceptionOr<int> setInterval(JSC::ExecState&, std::unique_ptr<ScheduledAction>, int timeout, Vector<JSC::Strong<JSC::Unknown>>&& arguments);
void clearInterval(int timeoutId);
bool isContextThread() const final;
bool isSecureContext() const final;
WorkerNavigator* optionalNavigator() const { return m_navigator.get(); }
WorkerLocation* optionalLocation() const { return m_location.get(); }
using RefCounted::ref;
using RefCounted::deref;
bool isClosing() { return m_closing; }
void addConsoleMessage(std::unique_ptr<Inspector::ConsoleMessage>&&) final;
Crypto& crypto();
Performance& performance() const;
void removeAllEventListeners() final;
protected:
WorkerGlobalScope(const URL&, const String& identifier, const String& userAgent, WorkerThread&, bool shouldBypassMainWorldContentSecurityPolicy, Ref<SecurityOrigin>&& topOrigin, MonotonicTime timeOrigin, IDBClient::IDBConnectionProxy*, SocketProvider*);
void applyContentSecurityPolicyResponseHeaders(const ContentSecurityPolicyResponseHeaders&);
private:
void refScriptExecutionContext() final { ref(); }
void derefScriptExecutionContext() final { deref(); }
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
void logExceptionToConsole(const String& errorMessage, const String& sourceURL, int lineNumber, int columnNumber, RefPtr<Inspector::ScriptCallStack>&&) final;
// The following addMessage and addConsoleMessage functions are deprecated.
// Callers should try to create the ConsoleMessage themselves.
void addMessage(MessageSource, MessageLevel, const String& message, const String& sourceURL, unsigned lineNumber, unsigned columnNumber, RefPtr<Inspector::ScriptCallStack>&&, JSC::ExecState*, unsigned long requestIdentifier) final;
void addConsoleMessage(MessageSource, MessageLevel, const String& message, unsigned long requestIdentifier) final;
bool isWorkerGlobalScope() const final { return true; }
ScriptExecutionContext* scriptExecutionContext() const final { return const_cast<WorkerGlobalScope*>(this); }
URL completeURL(const String&) const final;
String userAgent(const URL&) const final;
void disableEval(const String& errorMessage) final;
void disableWebAssembly(const String& errorMessage) final;
EventTarget* errorEventTarget() final;
WorkerEventQueue& eventQueue() const final;
String resourceRequestIdentifier() const final { return m_identifier; }
SocketProvider* socketProvider() final;
bool shouldBypassMainWorldContentSecurityPolicy() const final { return m_shouldBypassMainWorldContentSecurityPolicy; }
bool isJSExecutionForbidden() const final;
SecurityOrigin& topOrigin() const final { return m_topOrigin.get(); }
#if ENABLE(SUBTLE_CRYPTO)
// The following two functions are side effects of providing extra protection to serialized
// CryptoKey data that went through the structured clone algorithm to local storage such as
// IndexedDB. They don't provide any proctection against communications between mainThread
// and workerThreads. In fact, they cause extra expense as workerThreads cannot talk to clients
// to unwrap/wrap crypto keys. Hence, workerThreads must always ask mainThread to unwrap/wrap
// keys, which results in a second communication and plain keys being transferred between
// workerThreads and the mainThread.
bool wrapCryptoKey(const Vector<uint8_t>& key, Vector<uint8_t>& wrappedKey) final;
bool unwrapCryptoKey(const Vector<uint8_t>& wrappedKey, Vector<uint8_t>& key) final;
#endif
URL m_url;
String m_identifier;
String m_userAgent;
mutable RefPtr<WorkerLocation> m_location;
mutable RefPtr<WorkerNavigator> m_navigator;
WorkerThread& m_thread;
std::unique_ptr<WorkerScriptController> m_script;
std::unique_ptr<WorkerInspectorController> m_inspectorController;
bool m_closing { false };
bool m_shouldBypassMainWorldContentSecurityPolicy;
mutable WorkerEventQueue m_eventQueue;
Ref<SecurityOrigin> m_topOrigin;
#if ENABLE(INDEXED_DATABASE)
RefPtr<IDBClient::IDBConnectionProxy> m_connectionProxy;
#endif
RefPtr<SocketProvider> m_socketProvider;
RefPtr<Performance> m_performance;
mutable RefPtr<Crypto> m_crypto;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::WorkerGlobalScope)
static bool isType(const WebCore::ScriptExecutionContext& context) { return context.isWorkerGlobalScope(); }
SPECIALIZE_TYPE_TRAITS_END()
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