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/*
* Copyright (C) 2016 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 "CachedResourceClient.h"
#include "CachedResourceHandle.h"
#include "CachedScript.h"
#include "Document.h"
#include "LoadableScript.h"
#include "LoadableScriptError.h"
#include "ReferrerPolicy.h"
#include <wtf/TypeCasts.h>
namespace WebCore {
class WeakPtrImplWithEventTargetData;
// A CachedResourceHandle alone does not prevent the underlying CachedResource
// from purging its data buffer. This class holds a client until this class is
// destroyed in order to guarantee that the data buffer will not be purged.
class LoadableNonModuleScriptBase : public LoadableScript, protected CachedResourceClient {
public:
virtual ~LoadableNonModuleScriptBase();
bool isLoaded() const final;
bool hasError() const final;
std::optional<Error> takeError() final;
bool wasCanceled() const final;
Document* document() { return m_weakDocument.get(); }
CachedScript& cachedScript() { return *m_cachedScript; }
CachedResourceHandle<CachedScript> protectedCachedScript() { return cachedScript(); }
bool load(Document&, const URL&);
bool isAsync() const { return m_isAsync; }
const AtomString& integrity() const { return m_integrity; }
protected:
LoadableNonModuleScriptBase(const AtomString& nonce, const AtomString& integrity, ReferrerPolicy, RequestPriority, const AtomString& crossOriginMode, const AtomString& charset, const AtomString& initiatorType, bool isInUserAgentShadowTree, bool isAsync);
private:
void notifyFinished(CachedResource&, const NetworkLoadMetrics&, LoadWillContinueInAnotherProcess) final;
protected:
CachedResourceHandle<CachedScript> m_cachedScript { };
WeakPtr<Document, WeakPtrImplWithEventTargetData> m_weakDocument;
std::optional<Error> m_error { std::nullopt };
const AtomString m_integrity;
bool m_isAsync { false };
};
class LoadableClassicScript final : public LoadableNonModuleScriptBase {
public:
static Ref<LoadableClassicScript> create(const AtomString& nonce, const AtomString& integrity, ReferrerPolicy, RequestPriority, const AtomString& crossOriginMode, const AtomString& charset, const AtomString& initiatorType, bool isInUserAgentShadowTree, bool isAsync);
ScriptType scriptType() const final { return ScriptType::Classic; }
void execute(ScriptElement&) final;
private:
LoadableClassicScript(const AtomString& nonce, const AtomString& integrity, ReferrerPolicy, RequestPriority, const AtomString& crossOriginMode, const AtomString& charset, const AtomString& initiatorType, bool isInUserAgentShadowTree, bool isAsync);
};
}
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::LoadableClassicScript)
static bool isType(const WebCore::LoadableScript& script) { return script.isClassicScript(); }
SPECIALIZE_TYPE_TRAITS_END()
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