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Diffstat (limited to '')
| -rw-r--r-- | netwerk/cache/nsDiskCacheDeviceSQL.h | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/netwerk/cache/nsDiskCacheDeviceSQL.h b/netwerk/cache/nsDiskCacheDeviceSQL.h new file mode 100644 index 0000000000..772bc21b83 --- /dev/null +++ b/netwerk/cache/nsDiskCacheDeviceSQL.h @@ -0,0 +1,263 @@ +/* vim:set ts=2 sw=2 sts=2 et cin: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef nsOfflineCacheDevice_h__ +#define nsOfflineCacheDevice_h__ + +#include "nsCacheDevice.h" +#include "nsIApplicationCache.h" +#include "mozIStorageConnection.h" +#include "mozIStorageFunction.h" +#include "nsIFile.h" +#include "nsCOMPtr.h" +#include "nsCOMArray.h" +#include "nsInterfaceHashtable.h" +#include "nsClassHashtable.h" +#include "nsIWeakReference.h" +#include "mozilla/Attributes.h" +#include "mozilla/Mutex.h" + +class nsIURI; +class nsOfflineCacheDevice; +class mozIStorageService; +class nsILoadContextInfo; +namespace mozilla { +class OriginAttributesPattern; +} + +class nsApplicationCacheNamespace final : public nsIApplicationCacheNamespace { + public: + NS_DECL_ISUPPORTS + NS_DECL_NSIAPPLICATIONCACHENAMESPACE + + nsApplicationCacheNamespace() : mItemType(0) {} + + private: + ~nsApplicationCacheNamespace() = default; + + uint32_t mItemType; + nsCString mNamespaceSpec; + nsCString mData; +}; + +class nsOfflineCacheEvictionFunction final : public mozIStorageFunction { + public: + NS_DECL_THREADSAFE_ISUPPORTS + NS_DECL_MOZISTORAGEFUNCTION + + explicit nsOfflineCacheEvictionFunction(nsOfflineCacheDevice* device); + + void Init(); + void Reset(); + void Apply(); + + private: + ~nsOfflineCacheEvictionFunction() = default; + + nsOfflineCacheDevice* mDevice; + bool mTLSInited; +}; + +class nsOfflineCacheDevice final : public nsCacheDevice, public nsISupports { + public: + nsOfflineCacheDevice(); + + NS_DECL_THREADSAFE_ISUPPORTS + + /** + * nsCacheDevice methods + */ + + virtual nsresult Init() override; + nsresult InitWithSqlite(mozIStorageService* ss); + virtual nsresult Shutdown() override; + + virtual const char* GetDeviceID(void) override; + virtual nsCacheEntry* FindEntry(nsCString* key, bool* collision) override; + virtual nsresult DeactivateEntry(nsCacheEntry* entry) override; + virtual nsresult BindEntry(nsCacheEntry* entry) override; + virtual void DoomEntry(nsCacheEntry* entry) override; + + virtual nsresult OpenInputStreamForEntry(nsCacheEntry* entry, + nsCacheAccessMode mode, + uint32_t offset, + nsIInputStream** result) override; + + virtual nsresult OpenOutputStreamForEntry(nsCacheEntry* entry, + nsCacheAccessMode mode, + uint32_t offset, + nsIOutputStream** result) override; + + virtual nsresult GetFileForEntry(nsCacheEntry* entry, + nsIFile** result) override; + + virtual nsresult OnDataSizeChange(nsCacheEntry* entry, + int32_t deltaSize) override; + + virtual nsresult Visit(nsICacheVisitor* visitor) override; + + virtual nsresult EvictEntries(const char* clientID) override; + + /* Entry ownership */ + nsresult GetOwnerDomains(const char* clientID, uint32_t* count, + char*** domains); + nsresult GetOwnerURIs(const char* clientID, const nsACString& ownerDomain, + uint32_t* count, char*** uris); + nsresult SetOwnedKeys(const char* clientID, const nsACString& ownerDomain, + const nsACString& ownerUrl, uint32_t count, + const char** keys); + nsresult GetOwnedKeys(const char* clientID, const nsACString& ownerDomain, + const nsACString& ownerUrl, uint32_t* count, + char*** keys); + nsresult AddOwnedKey(const char* clientID, const nsACString& ownerDomain, + const nsACString& ownerURI, const nsACString& key); + nsresult RemoveOwnedKey(const char* clientID, const nsACString& ownerDomain, + const nsACString& ownerURI, const nsACString& key); + nsresult KeyIsOwned(const char* clientID, const nsACString& ownerDomain, + const nsACString& ownerURI, const nsACString& key, + bool* isOwned); + + nsresult ClearKeysOwnedByDomain(const char* clientID, + const nsACString& ownerDomain); + nsresult EvictUnownedEntries(const char* clientID); + + static nsresult BuildApplicationCacheGroupID(nsIURI* aManifestURL, + nsACString const& aOriginSuffix, + nsACString& _result); + + nsresult ActivateCache(const nsACString& group, const nsACString& clientID); + bool IsActiveCache(const nsACString& group, const nsACString& clientID); + nsresult CreateApplicationCache(const nsACString& group, + nsIApplicationCache** out); + + nsresult GetApplicationCache(const nsACString& clientID, + nsIApplicationCache** out); + nsresult GetApplicationCache_Unlocked(const nsACString& clientID, + nsIApplicationCache** out); + + nsresult GetActiveCache(const nsACString& group, nsIApplicationCache** out); + + nsresult DeactivateGroup(const nsACString& group); + + nsresult ChooseApplicationCache(const nsACString& key, + nsILoadContextInfo* loadContext, + nsIApplicationCache** out); + + nsresult CacheOpportunistically(nsIApplicationCache* cache, + const nsACString& key); + + nsresult Evict(nsILoadContextInfo* aInfo); + nsresult Evict(mozilla::OriginAttributesPattern const& aPattern); + + nsresult GetGroups(nsTArray<nsCString>& keys); + + nsresult GetGroupsTimeOrdered(nsTArray<nsCString>& keys); + + bool IsLocked(const nsACString& key); + void Lock(const nsACString& key); + void Unlock(const nsACString& key); + + /** + * Preference accessors + */ + + void SetCacheParentDirectory(nsIFile* parentDir); + void SetCapacity(uint32_t capacity); + void SetAutoShutdown() { mAutoShutdown = true; } + bool AutoShutdown(nsIApplicationCache* aAppCache); + + nsIFile* BaseDirectory() { return mBaseDirectory; } + nsIFile* CacheDirectory() { return mCacheDirectory; } + uint32_t CacheCapacity() { return mCacheCapacity; } + uint32_t CacheSize(); + uint32_t EntryCount(); + + private: + ~nsOfflineCacheDevice() = default; + + friend class nsApplicationCache; + + static bool GetStrictFileOriginPolicy(); + + bool Initialized() { return mDB != nullptr; } + + nsresult InitActiveCaches(); + nsresult UpdateEntry(nsCacheEntry* entry); + nsresult UpdateEntrySize(nsCacheEntry* entry, uint32_t newSize); + nsresult DeleteEntry(nsCacheEntry* entry, bool deleteData); + nsresult DeleteData(nsCacheEntry* entry); + nsresult EnableEvictionObserver(); + nsresult DisableEvictionObserver(); + + bool CanUseCache(nsIURI* keyURI, const nsACString& clientID, + nsILoadContextInfo* loadContext); + + nsresult MarkEntry(const nsCString& clientID, const nsACString& key, + uint32_t typeBits); + nsresult UnmarkEntry(const nsCString& clientID, const nsACString& key, + uint32_t typeBits); + + nsresult CacheOpportunistically(const nsCString& clientID, + const nsACString& key); + nsresult GetTypes(const nsCString& clientID, const nsACString& key, + uint32_t* typeBits); + + nsresult GetMatchingNamespace(const nsCString& clientID, + const nsACString& key, + nsIApplicationCacheNamespace** out); + nsresult GatherEntries(const nsCString& clientID, uint32_t typeBits, + nsTArray<nsCString>& keys); + nsresult AddNamespace(const nsCString& clientID, + nsIApplicationCacheNamespace* ns); + + nsresult GetUsage(const nsACString& clientID, uint32_t* usage); + + nsresult RunSimpleQuery(mozIStorageStatement* statment, uint32_t resultIndex, + nsTArray<nsCString>& values); + + nsCOMPtr<mozIStorageConnection> mDB; + RefPtr<nsOfflineCacheEvictionFunction> mEvictionFunction; + + nsCOMPtr<mozIStorageStatement> mStatement_CacheSize; + nsCOMPtr<mozIStorageStatement> mStatement_ApplicationCacheSize; + nsCOMPtr<mozIStorageStatement> mStatement_EntryCount; + nsCOMPtr<mozIStorageStatement> mStatement_UpdateEntry; + nsCOMPtr<mozIStorageStatement> mStatement_UpdateEntrySize; + nsCOMPtr<mozIStorageStatement> mStatement_DeleteEntry; + nsCOMPtr<mozIStorageStatement> mStatement_FindEntry; + nsCOMPtr<mozIStorageStatement> mStatement_BindEntry; + nsCOMPtr<mozIStorageStatement> mStatement_ClearDomain; + nsCOMPtr<mozIStorageStatement> mStatement_MarkEntry; + nsCOMPtr<mozIStorageStatement> mStatement_UnmarkEntry; + nsCOMPtr<mozIStorageStatement> mStatement_GetTypes; + nsCOMPtr<mozIStorageStatement> mStatement_FindNamespaceEntry; + nsCOMPtr<mozIStorageStatement> mStatement_InsertNamespaceEntry; + nsCOMPtr<mozIStorageStatement> mStatement_CleanupUnmarked; + nsCOMPtr<mozIStorageStatement> mStatement_GatherEntries; + nsCOMPtr<mozIStorageStatement> mStatement_ActivateClient; + nsCOMPtr<mozIStorageStatement> mStatement_DeactivateGroup; + nsCOMPtr<mozIStorageStatement> mStatement_FindClient; + nsCOMPtr<mozIStorageStatement> mStatement_FindClientByNamespace; + nsCOMPtr<mozIStorageStatement> mStatement_EnumerateApps; + nsCOMPtr<mozIStorageStatement> mStatement_EnumerateGroups; + nsCOMPtr<mozIStorageStatement> mStatement_EnumerateGroupsTimeOrder; + + nsCOMPtr<nsIFile> mBaseDirectory; + nsCOMPtr<nsIFile> mCacheDirectory; + uint32_t mCacheCapacity; // in bytes + int32_t mDeltaCounter; + bool mAutoShutdown; + + mozilla::Mutex mLock; + + nsInterfaceHashtable<nsCStringHashKey, nsIWeakReference> mCaches; + nsClassHashtable<nsCStringHashKey, nsCString> mActiveCachesByGroup; + nsTHashtable<nsCStringHashKey> mActiveCaches; + nsTHashtable<nsCStringHashKey> mLockedEntries; + + nsCOMPtr<nsIEventTarget> mInitEventTarget; +}; + +#endif // nsOfflineCacheDevice_h__ |