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/*
* Copyright (C) 2008 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.
*/
#include "config.h"
#include "Storage.h"
#include "Document.h"
#include "LegacySchemeRegistry.h"
#include "LocalFrame.h"
#include "Page.h"
#include "ScriptTelemetryCategory.h"
#include "SecurityOrigin.h"
#include "StorageArea.h"
#include "StorageType.h"
#include <wtf/TZoneMallocInlines.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(Storage);
Ref<Storage> Storage::create(LocalDOMWindow& window, Ref<StorageArea>&& storageArea)
{
return adoptRef(*new Storage(window, WTFMove(storageArea)));
}
Storage::Storage(LocalDOMWindow& window, Ref<StorageArea>&& storageArea)
: LocalDOMWindowProperty(&window)
, m_storageArea(WTFMove(storageArea))
{
ASSERT(frame());
m_storageArea->incrementAccessCount();
}
Storage::~Storage()
{
m_storageArea->decrementAccessCount();
}
unsigned Storage::length() const
{
if (requiresScriptExecutionTelemetry())
return 0;
return m_storageArea->length();
}
String Storage::key(unsigned index) const
{
if (requiresScriptExecutionTelemetry())
return { };
return m_storageArea->key(index);
}
String Storage::getItem(const String& key) const
{
if (requiresScriptExecutionTelemetry())
return { };
return m_storageArea->item(key);
}
ExceptionOr<void> Storage::setItem(const String& key, const String& value)
{
auto* frame = this->frame();
if (!frame)
return Exception { ExceptionCode::InvalidAccessError };
if (requiresScriptExecutionTelemetry())
return { };
bool quotaException = false;
m_storageArea->setItem(*frame, key, value, quotaException);
if (quotaException)
return Exception { ExceptionCode::QuotaExceededError };
return { };
}
ExceptionOr<void> Storage::removeItem(const String& key)
{
auto* frame = this->frame();
if (!frame)
return Exception { ExceptionCode::InvalidAccessError };
if (requiresScriptExecutionTelemetry())
return { };
m_storageArea->removeItem(*frame, key);
return { };
}
ExceptionOr<void> Storage::clear()
{
auto* frame = this->frame();
if (!frame)
return Exception { ExceptionCode::InvalidAccessError };
m_storageArea->clear(*frame);
return { };
}
bool Storage::contains(const String& key) const
{
return m_storageArea->contains(key);
}
bool Storage::isSupportedPropertyName(const String& propertyName) const
{
return m_storageArea->contains(propertyName);
}
Vector<AtomString> Storage::supportedPropertyNames() const
{
unsigned length = m_storageArea->length();
return Vector<AtomString>(length, [this](size_t i) {
return m_storageArea->key(i);
});
}
Ref<StorageArea> Storage::protectedArea() const
{
return m_storageArea;
}
bool Storage::requiresScriptExecutionTelemetry() const
{
RefPtr document = window() ? window()->document() : nullptr;
return document && document->requiresScriptExecutionTelemetry(ScriptTelemetryCategory::LocalStorage);
}
} // namespace WebCore
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