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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Definitions required for Authorization plugin
*
* Copyright (C) 2010 Monty Taylor
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <drizzled/plugin.h>
#include <drizzled/plugin/plugin.h>
#include <drizzled/identifier.h>
#include <string>
#include <set>
#include <drizzled/visibility.h>
namespace drizzled
{
namespace plugin
{
class DRIZZLED_API Authorization : public Plugin
{
Authorization();
Authorization(const Authorization &);
Authorization& operator=(const Authorization &);
public:
explicit Authorization(std::string name_arg)
: Plugin(name_arg, "Authorization")
{}
virtual ~Authorization() {}
/**
* Should we restrict the current user's access to this schema?
*
* @param Current security context
* @param Database to check against
*
* @returns true if the user cannot access the schema
*/
virtual bool restrictSchema(const drizzled::identifier::User &user_ctx,
const identifier::Schema& schema)= 0;
/**
* Should we restrict the current user's access to this table?
*
* @param Current security context
* @param Database to check against
* @param Table to check against
*
* @returns true if the user cannot access the table
*/
virtual bool restrictTable(const drizzled::identifier::User& user_ctx,
const drizzled::identifier::Table& table);
/**
* Should we restrict the current user's access to see this process?
*
* @param Current security context
* @param Database to check against
* @param Table to check against
*
* @returns true if the user cannot see the process
*/
virtual bool restrictProcess(const drizzled::identifier::User &user_ctx,
const drizzled::identifier::User &session_ctx);
/** Server API method for checking schema authorization */
static bool isAuthorized(const drizzled::identifier::User& user_ctx,
const identifier::Schema& schema_identifier,
bool send_error= true);
/** Server API method for checking table authorization */
static bool isAuthorized(const drizzled::identifier::User& user_ctx,
const drizzled::identifier::Table& table_identifier,
bool send_error= true);
/** Server API method for checking process authorization */
static bool isAuthorized(const drizzled::identifier::User& user_ctx,
const Session &session,
bool send_error= true);
/**
* Server API helper method for applying authorization tests
* to a set of schema names (for use in the context of getSchemaNames
*/
static void pruneSchemaNames(const drizzled::identifier::User& user_ctx,
identifier::schema::vector &set_of_schemas);
/**
* Standard plugin system registration hooks
*/
static bool addPlugin(plugin::Authorization *auth);
static void removePlugin(plugin::Authorization *auth);
};
inline bool Authorization::restrictTable(const drizzled::identifier::User& user_ctx,
const drizzled::identifier::Table& table)
{
return restrictSchema(user_ctx, table);
}
inline bool Authorization::restrictProcess(const drizzled::identifier::User &,
const drizzled::identifier::User &)
{
return false;
}
} /* namespace plugin */
} /* namespace drizzled */
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