/*

 * Copyright (C) 2007 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.

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE 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 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.

 */

#ifndef DatabaseAuthorizer_h

#define DatabaseAuthorizer_h

#include <wtf/PassRefPtr.h>

#include <wtf/Threading.h>

namespace WebCore {

class String;

extern const int SQLAuthAllow;

extern const int SQLAuthIgnore;

extern const int SQLAuthDeny;

class DatabaseAuthorizer : public ThreadSafeShared<DatabaseAuthorizer> {

public:

    static PassRefPtr<DatabaseAuthorizer> create() { return adoptRef(new DatabaseAuthorizer); }

    int createTable(const String& tableName);

    int createTempTable(const String& tableName);

    int dropTable(const String& tableName);

    int dropTempTable(const String& tableName);

    int allowAlterTable(const String& databaseName, const String& tableName);

    int createIndex(const String& indexName, const String& tableName);

    int createTempIndex(const String& indexName, const String& tableName);

    int dropIndex(const String& indexName, const String& tableName);

    int dropTempIndex(const String& indexName, const String& tableName);

    int createTrigger(const String& triggerName, const String& tableName);

    int createTempTrigger(const String& triggerName, const String& tableName);

    int dropTrigger(const String& triggerName, const String& tableName);

    int dropTempTrigger(const String& triggerName, const String& tableName);

    int createView(const String& viewName);

    int createTempView(const String& viewName);

    int dropView(const String& viewName);

    int dropTempView(const String& viewName);

    int createVTable(const String& tableName, const String& moduleName);

    int dropVTable(const String& tableName, const String& moduleName);

    int allowDelete(const String& tableName);

    int allowInsert(const String& tableName);

    int allowUpdate(const String& tableName, const String& columnName);

    int allowTransaction();

    int allowSelect() { return SQLAuthAllow; }

    int allowRead(const String& tableName, const String& columnName);

    int allowReindex(const String& indexName);

    int allowAnalyze(const String& tableName);

    int allowFunction(const String& functionName);

    int allowPragma(const String& pragmaName, const String& firstArgument);

    int allowAttach(const String& filename);

    int allowDetach(const String& databaseName);

    void disable();

    void enable();

    void setReadOnly();

    void reset();

    bool lastActionWasInsert() const { return m_lastActionWasInsert; }

    bool lastActionChangedDatabase() const { return m_lastActionChangedDatabase; }

private:

    DatabaseAuthorizer();

    int denyBasedOnTableName(const String&);

    bool m_securityEnabled : 1;

    bool m_lastActionWasInsert : 1;

    bool m_lastActionChangedDatabase : 1;

    bool m_readOnly : 1;

};

} // namespace WebCore

#endif // DatabaseAuthorizer_h