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/*
* Copyright (C) 2016 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.
*/
#pragma once
#if ENABLE(INDEXED_DATABASE)
#include "IDBBackingStore.h"
#include "IDBDatabaseIdentifier.h"
#include "IDBDatabaseInfo.h"
#include "IDBResourceIdentifier.h"
#include "SQLiteIDBTransaction.h"
#include <JavaScriptCore/Strong.h>
#include <wtf/HashMap.h>
namespace WebCore {
class IndexKey;
class SQLiteDatabase;
class SQLiteStatement;
namespace IDBServer {
class SQLiteIDBCursor;
class SQLiteIDBBackingStore : public IDBBackingStore {
public:
SQLiteIDBBackingStore(const IDBDatabaseIdentifier&, const String& databaseRootDirectory, IDBBackingStoreTemporaryFileHandler&);
~SQLiteIDBBackingStore() final;
IDBError getOrEstablishDatabaseInfo(IDBDatabaseInfo&) final;
IDBError beginTransaction(const IDBTransactionInfo&) final;
IDBError abortTransaction(const IDBResourceIdentifier& transactionIdentifier) final;
IDBError commitTransaction(const IDBResourceIdentifier& transactionIdentifier) final;
IDBError createObjectStore(const IDBResourceIdentifier& transactionIdentifier, const IDBObjectStoreInfo&) final;
IDBError deleteObjectStore(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier) final;
IDBError renameObjectStore(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier, const String& newName) final;
IDBError clearObjectStore(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier) final;
IDBError createIndex(const IDBResourceIdentifier& transactionIdentifier, const IDBIndexInfo&) final;
IDBError deleteIndex(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t indexIdentifier) final;
IDBError renameIndex(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t indexIdentifier, const String& newName) final;
IDBError keyExistsInObjectStore(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier, const IDBKeyData&, bool& keyExists) final;
IDBError deleteRange(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier, const IDBKeyRangeData&) final;
IDBError addRecord(const IDBResourceIdentifier& transactionIdentifier, const IDBObjectStoreInfo&, const IDBKeyData&, const IDBValue&) final;
IDBError getRecord(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier, const IDBKeyRangeData&, IDBGetRecordDataType, IDBGetResult& outValue) final;
IDBError getAllRecords(const IDBResourceIdentifier& transactionIdentifier, const IDBGetAllRecordsData&, IDBGetAllResult& outValue) final;
IDBError getIndexRecord(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t indexIdentifier, IndexedDB::IndexRecordType, const IDBKeyRangeData&, IDBGetResult& outValue) final;
IDBError getCount(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t indexIdentifier, const IDBKeyRangeData&, uint64_t& outCount) final;
IDBError generateKeyNumber(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t& keyNumber) final;
IDBError revertGeneratedKeyNumber(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier, uint64_t keyNumber) final;
IDBError maybeUpdateKeyGeneratorNumber(const IDBResourceIdentifier& transactionIdentifier, uint64_t objectStoreIdentifier, double newKeyNumber) final;
IDBError openCursor(const IDBResourceIdentifier& transactionIdentifier, const IDBCursorInfo&, IDBGetResult& outResult) final;
IDBError iterateCursor(const IDBResourceIdentifier& transactionIdentifier, const IDBResourceIdentifier& cursorIdentifier, const IDBIterateCursorData&, IDBGetResult& outResult) final;
bool prefetchCursor(const IDBResourceIdentifier&, const IDBResourceIdentifier&) final;
IDBObjectStoreInfo* infoForObjectStore(uint64_t objectStoreIdentifier) final;
void deleteBackingStore() final;
bool supportsSimultaneousTransactions() final { return false; }
bool isEphemeral() final { return false; }
void unregisterCursor(SQLiteIDBCursor&);
String fullDatabaseDirectory() const;
IDBBackingStoreTemporaryFileHandler& temporaryFileHandler() const { return m_temporaryFileHandler; }
IDBError getBlobRecordsForObjectStoreRecord(int64_t objectStoreRecord, Vector<String>& blobURLs, Vector<String>& blobFilePaths);
static String databaseNameFromEncodedFilename(const String&);
private:
String filenameForDatabaseName() const;
String fullDatabasePath() const;
bool ensureValidRecordsTable();
bool ensureValidIndexRecordsTable();
bool ensureValidIndexRecordsIndex();
bool ensureValidBlobTables();
std::unique_ptr<IDBDatabaseInfo> createAndPopulateInitialDatabaseInfo();
std::unique_ptr<IDBDatabaseInfo> extractExistingDatabaseInfo();
IDBError deleteRecord(SQLiteIDBTransaction&, int64_t objectStoreID, const IDBKeyData&);
IDBError uncheckedGetKeyGeneratorValue(int64_t objectStoreID, uint64_t& outValue);
IDBError uncheckedSetKeyGeneratorValue(int64_t objectStoreID, uint64_t value);
IDBError updateAllIndexesForAddRecord(const IDBObjectStoreInfo&, const IDBKeyData&, const ThreadSafeDataBuffer& value, int64_t recordID);
IDBError updateOneIndexForAddRecord(const IDBIndexInfo&, const IDBKeyData&, const ThreadSafeDataBuffer& value, int64_t recordID);
IDBError uncheckedPutIndexKey(const IDBIndexInfo&, const IDBKeyData& keyValue, const IndexKey&, int64_t recordID);
IDBError uncheckedPutIndexRecord(int64_t objectStoreID, int64_t indexID, const IDBKeyData& keyValue, const IDBKeyData& indexKey, int64_t recordID);
IDBError uncheckedHasIndexRecord(const IDBIndexInfo&, const IDBKeyData&, bool& hasRecord);
IDBError uncheckedGetIndexRecordForOneKey(int64_t indexeID, int64_t objectStoreID, IndexedDB::IndexRecordType, const IDBKeyData&, IDBGetResult&);
IDBError deleteUnusedBlobFileRecords(SQLiteIDBTransaction&);
IDBError getAllObjectStoreRecords(const IDBResourceIdentifier& transactionIdentifier, const IDBGetAllRecordsData&, IDBGetAllResult& outValue);
IDBError getAllIndexRecords(const IDBResourceIdentifier& transactionIdentifier, const IDBGetAllRecordsData&, IDBGetAllResult& outValue);
void closeSQLiteDB();
enum class SQL : size_t {
CreateObjectStoreInfo,
CreateObjectStoreKeyGenerator,
DeleteObjectStoreInfo,
DeleteObjectStoreKeyGenerator,
DeleteObjectStoreRecords,
DeleteObjectStoreIndexInfo,
DeleteObjectStoreIndexRecords,
DeleteObjectStoreBlobRecords,
RenameObjectStore,
ClearObjectStoreRecords,
ClearObjectStoreIndexRecords,
CreateIndexInfo,
DeleteIndexInfo,
HasIndexRecord,
PutIndexRecord,
GetIndexRecordForOneKey,
DeleteIndexRecords,
RenameIndex,
KeyExistsInObjectStore,
GetUnusedBlobFilenames,
DeleteUnusedBlobs,
GetObjectStoreRecordID,
DeleteBlobRecord,
DeleteObjectStoreRecord,
DeleteObjectStoreIndexRecord,
AddObjectStoreRecord,
AddBlobRecord,
BlobFilenameForBlobURL,
AddBlobFilename,
GetBlobURL,
GetKeyGeneratorValue,
SetKeyGeneratorValue,
GetAllKeyRecordsLowerOpenUpperOpen,
GetAllKeyRecordsLowerOpenUpperClosed,
GetAllKeyRecordsLowerClosedUpperOpen,
GetAllKeyRecordsLowerClosedUpperClosed,
GetValueRecordsLowerOpenUpperOpen,
GetValueRecordsLowerOpenUpperClosed,
GetValueRecordsLowerClosedUpperOpen,
GetValueRecordsLowerClosedUpperClosed,
GetKeyRecordsLowerOpenUpperOpen,
GetKeyRecordsLowerOpenUpperClosed,
GetKeyRecordsLowerClosedUpperOpen,
GetKeyRecordsLowerClosedUpperClosed,
Count
};
SQLiteStatement* cachedStatement(SQL, const char*);
SQLiteStatement* cachedStatementForGetAllObjectStoreRecords(const IDBGetAllRecordsData&);
std::unique_ptr<SQLiteStatement> m_cachedStatements[static_cast<int>(SQL::Count)];
JSC::VM& vm();
JSC::JSGlobalObject& globalObject();
void initializeVM();
IDBDatabaseIdentifier m_identifier;
std::unique_ptr<IDBDatabaseInfo> m_databaseInfo;
std::unique_ptr<IDBDatabaseInfo> m_originalDatabaseInfoBeforeVersionChange;
std::unique_ptr<SQLiteDatabase> m_sqliteDB;
HashMap<IDBResourceIdentifier, std::unique_ptr<SQLiteIDBTransaction>> m_transactions;
HashMap<IDBResourceIdentifier, SQLiteIDBCursor*> m_cursors;
String m_absoluteDatabaseDirectory;
RefPtr<JSC::VM> m_vm;
JSC::Strong<JSC::JSGlobalObject> m_globalObject;
IDBBackingStoreTemporaryFileHandler& m_temporaryFileHandler;
};
} // namespace IDBServer
} // namespace WebCore
#endif // ENABLE(INDEXED_DATABASE)
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