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375ae1c863
LocalStorage needs to be exposed in every context except for sandboxes and NullPrincipals (data: URLs, for instance). But we need to keep data separate in some scenarios: private-browsing and trackers. In private-browsing, LocalStorage keeps data in memory, and it shares StorageEvents just with other origins in the same private-browsing environment. For Trackers, we expose a partitioned LocalStorage, which doesn't share data with other contexts, and it's just in memory. Partitioned localStorage is available only for trackers listed in the privacy.restrict3rdpartystorage.partitionedHosts pref. See nsContentUtils::IsURIInPrefList to know the syntax for the pref value.
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_PartitionedLocalStorage_h
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#define mozilla_dom_PartitionedLocalStorage_h
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#include "Storage.h"
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class nsIPrincipal;
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namespace mozilla {
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namespace dom {
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class SessionStorageCache;
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// PartitionedLocalStorage is a in-memory-only storage exposed to trackers. It
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// doesn't share data with other contexts.
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class PartitionedLocalStorage final : public Storage
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(PartitionedLocalStorage, Storage)
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PartitionedLocalStorage(nsPIDOMWindowInner* aWindow,
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nsIPrincipal* aPrincipal);
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StorageType Type() const override { return ePartitionedLocalStorage; }
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int64_t GetOriginQuotaUsage() const override;
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bool IsForkOf(const Storage* aStorage) const override;
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// WebIDL
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uint32_t GetLength(nsIPrincipal& aSubjectPrincipal,
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ErrorResult& aRv) override;
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void Key(uint32_t aIndex, nsAString& aResult,
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nsIPrincipal& aSubjectPrincipal,
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ErrorResult& aRv) override;
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void GetItem(const nsAString& aKey, nsAString& aResult,
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nsIPrincipal& aSubjectPrincipal,
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ErrorResult& aRv) override;
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void GetSupportedNames(nsTArray<nsString>& aKeys) override;
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void SetItem(const nsAString& aKey, const nsAString& aValue,
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nsIPrincipal& aSubjectPrincipal,
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ErrorResult& aRv) override;
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void RemoveItem(const nsAString& aKey,
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nsIPrincipal& aSubjectPrincipal,
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ErrorResult& aRv) override;
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void Clear(nsIPrincipal& aSubjectPrincipal,
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ErrorResult& aRv) override;
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private:
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~PartitionedLocalStorage();
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RefPtr<SessionStorageCache> mCache;
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};
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} // dom namespace
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} // mozilla namespace
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#endif //mozilla_dom_PartitionedLocalStorage_h
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