Source/WebKit/NetworkProcess/WebStorage/LocalStorageNamespace.cpp

/*
 * Copyright (C) 2013-2019 Apple Inc. All rights reserved.
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#include "config.h"
#include "LocalStorageNamespace.h"

#include "StorageArea.h"
#include "StorageManager.h"
#include <WebCore/SecurityOriginData.h>

namespace WebKit {

using namespace WebCore;

// We should investigate a way to share it with WebCore.
LocalStorageNamespace::LocalStorageNamespace(StorageManager& storageManager, uint64_t storageNamespaceID)
    : m_storageManager(storageManager)
    , m_quotaInBytes(StorageManager::localStorageDatabaseQuotaInBytes)
{
    ASSERT(!RunLoop::isMain());
}

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

auto LocalStorageNamespace::getOrCreateStorageArea(SecurityOriginData&& securityOrigin, IsEphemeral isEphemeral) -> Ref<StorageArea>
{
    ASSERT(!RunLoop::isMain());
    return *m_storageAreaMap.ensure(securityOrigin, [&]() mutable {
        return StorageArea::create(isEphemeral == IsEphemeral::Yes ? nullptr : this, WTFMove(securityOrigin), m_quotaInBytes);
    }).iterator->value;
}

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

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

Vector<SecurityOriginData> LocalStorageNamespace::ephemeralOrigins() 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 LocalStorageNamespace::cloneTo(LocalStorageNamespace& newLocalStorageNamespace)
{
    ASSERT(!RunLoop::isMain());
    for (auto& pair : m_storageAreaMap)
        newLocalStorageNamespace.m_storageAreaMap.add(pair.key, pair.value->clone());
}

} // namespace WebKit