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/*
* 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/Forward.h>
#include <wtf/HashSet.h>
#include <wtf/ThreadSafeRefCounted.h>
#include <wtf/text/StringHash.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
extern const int SQLAuthAllow;
extern const int SQLAuthIgnore;
extern const int SQLAuthDeny;
class DatabaseAuthorizer : public ThreadSafeRefCounted<DatabaseAuthorizer> {
public:
enum Permissions {
ReadWriteMask = 0,
ReadOnlyMask = 1 << 1,
NoAccessMask = 1 << 2
};
static PassRefPtr<DatabaseAuthorizer> create(const String& databaseInfoTableName);
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 setPermissions(int permissions);
void reset();
void resetDeletes();
bool lastActionWasInsert() const { return m_lastActionWasInsert; }
bool lastActionChangedDatabase() const { return m_lastActionChangedDatabase; }
bool hadDeletes() const { return m_hadDeletes; }
private:
explicit DatabaseAuthorizer(const String& databaseInfoTableName);
void addWhitelistedFunctions();
int denyBasedOnTableName(const String&) const;
int updateDeletesBasedOnTableName(const String&);
bool allowWrite();
int m_permissions;
bool m_securityEnabled : 1;
bool m_lastActionWasInsert : 1;
bool m_lastActionChangedDatabase : 1;
bool m_hadDeletes : 1;
const String m_databaseInfoTableName;
HashSet<String, CaseFoldingHash> m_whitelistedFunctions;
};
} // namespace WebCore
#endif // DatabaseAuthorizer_h
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