forked from mirrors/gecko-dev
5aef415cc6
In this patch, we will make Safebrowsing V2 caching use the same algorithm as V4. So we remove "mMissCache" for negative caching and TableFresness check for positive caching. But Safebrowsing V2 doesn't contain negative/positive cache duration information in gethash response. So we hard-code a fixed value, 15 minutes, as cache duration. In this way, we can sync the mechanism we handle caching for V2 and V4. An extra effort for V2 here is that we need to manually record prefixes misses because we won't get any response for those prefixes(implemented in nsUrlClassifierLookupCallback::CacheMisses). --HG-- extra : rebase_source : 0fb7938464ad24a01a51493ecb1b5c0197c16123
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
//* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 LookupCacheV4_h__
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#define LookupCacheV4_h__
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#include "LookupCache.h"
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namespace mozilla {
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namespace safebrowsing {
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// Forward declaration.
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class TableUpdateV4;
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class LookupCacheV4 final : public LookupCache
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{
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public:
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explicit LookupCacheV4(const nsACString& aTableName,
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const nsACString& aProvider,
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nsIFile* aStoreFile)
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: LookupCache(aTableName, aProvider, aStoreFile) {}
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~LookupCacheV4() {}
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virtual nsresult Init() override;
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virtual nsresult Has(const Completion& aCompletion,
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bool* aHas,
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uint32_t* aMatchLength,
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bool* aConfirmed) override;
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virtual bool IsEmpty() override;
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nsresult Build(PrefixStringMap& aPrefixMap);
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nsresult GetPrefixes(PrefixStringMap& aPrefixMap);
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nsresult GetFixedLengthPrefixes(FallibleTArray<uint32_t>& aPrefixes);
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// ApplyUpdate will merge data stored in aTableUpdate with prefixes in aInputMap.
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nsresult ApplyUpdate(TableUpdateV4* aTableUpdate,
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PrefixStringMap& aInputMap,
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PrefixStringMap& aOutputMap);
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nsresult AddFullHashResponseToCache(const FullHashResponseMap& aResponseMap);
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nsresult WriteMetadata(TableUpdateV4* aTableUpdate);
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nsresult LoadMetadata(nsACString& aState, nsACString& aChecksum);
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static const int VER;
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protected:
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virtual nsresult ClearPrefixes() override;
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virtual nsresult StoreToFile(nsIFile* aFile) override;
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virtual nsresult LoadFromFile(nsIFile* aFile) override;
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virtual size_t SizeOfPrefixSet() override;
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private:
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virtual int Ver() const override { return VER; }
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nsresult InitCrypto(nsCOMPtr<nsICryptoHash>& aCrypto);
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nsresult VerifyChecksum(const nsACString& aChecksum);
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RefPtr<VariableLengthPrefixSet> mVLPrefixSet;
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};
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} // namespace safebrowsing
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} // namespace mozilla
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#endif
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