File: SessionStorageNamespace.cpp

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/*
 * Copyright (C) 2013-2019 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.
 */

#include "config.h"
#include "SessionStorageNamespace.h"

#include "StorageArea.h"

namespace WebKit {

using namespace WebCore;

SessionStorageNamespace::SessionStorageNamespace(unsigned quotaInBytes)
    : m_quotaInBytes(quotaInBytes)
{
    ASSERT(!RunLoop::isMain());
}

SessionStorageNamespace::~SessionStorageNamespace()
{
    ASSERT(!RunLoop::isMain());
}

StorageArea& SessionStorageNamespace::getOrCreateStorageArea(SecurityOriginData&& securityOrigin, Ref<SuspendableWorkQueue>&& workQueue)
{
    ASSERT(!RunLoop::isMain());
    return *m_storageAreaMap.ensure(securityOrigin, [&]() mutable {
        return makeUnique<StorageArea>(nullptr, WTFMove(securityOrigin), m_quotaInBytes, WTFMove(workQueue));
    }).iterator->value.get();
}

void SessionStorageNamespace::cloneTo(SessionStorageNamespace& newSessionStorageNamespace)
{
    ASSERT(!RunLoop::isMain());
    ASSERT_UNUSED(newSessionStorageNamespace, newSessionStorageNamespace.isEmpty());

    for (auto& pair : m_storageAreaMap)
        newSessionStorageNamespace.m_storageAreaMap.add(pair.key, pair.value->clone());
}

Vector<SecurityOriginData> SessionStorageNamespace::origins() const
{
    ASSERT(!RunLoop::isMain());
    Vector<SecurityOriginData> origins;

    for (const auto& storageArea : m_storageAreaMap.values()) {
        if (!storageArea->items().isEmpty())
            origins.append(storageArea->securityOrigin());
    }

    return origins;
}

void SessionStorageNamespace::clearStorageAreasMatchingOrigin(const SecurityOriginData& securityOrigin)
{
    ASSERT(!RunLoop::isMain());
    auto originAndStorageArea = m_storageAreaMap.find(securityOrigin);
    if (originAndStorageArea != m_storageAreaMap.end())
        originAndStorageArea->value->clear();
}

void SessionStorageNamespace::clearAllStorageAreas()
{
    ASSERT(!RunLoop::isMain());
    for (auto& storageArea : m_storageAreaMap.values())
        storageArea->clear();
}

Vector<StorageAreaIdentifier> SessionStorageNamespace::storageAreaIdentifiers() const
{
    Vector<StorageAreaIdentifier> identifiers;
    for (auto& storageArea : m_storageAreaMap.values())
        identifiers.append(storageArea->identifier());
    return identifiers;
}

} // namespace WebKit