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/**
* Copyright (C) 2012 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include <boost/thread/mutex.hpp>
#include <string>
#include "mongo/base/disallow_copying.h"
#include "mongo/base/status.h"
#include "mongo/db/auth/authz_manager_external_state.h"
#include "mongo/db/auth/role_graph.h"
#include "mongo/db/auth/role_name.h"
#include "mongo/db/auth/user_name.h"
#include "mongo/stdx/functional.h"
namespace mongo {
/**
* Common implementation of AuthzManagerExternalState for systems where role
* and user information are stored locally.
*/
class AuthzManagerExternalStateLocal : public AuthzManagerExternalState {
MONGO_DISALLOW_COPYING(AuthzManagerExternalStateLocal);
public:
virtual ~AuthzManagerExternalStateLocal();
virtual Status initialize(OperationContext* txn);
virtual Status getStoredAuthorizationVersion(OperationContext* txn, int* outVersion);
virtual Status getUserDescription(
OperationContext* txn, const UserName& userName, BSONObj* result);
virtual Status getRoleDescription(const RoleName& roleName,
bool showPrivileges,
BSONObj* result);
virtual Status getRoleDescriptionsForDB(const std::string dbname,
bool showPrivileges,
bool showBuiltinRoles,
std::vector<BSONObj>* result);
virtual void logOp(
const char* op,
const char* ns,
const BSONObj& o,
BSONObj* o2,
bool* b);
protected:
AuthzManagerExternalStateLocal();
private:
enum RoleGraphState {
roleGraphStateInitial = 0,
roleGraphStateConsistent,
roleGraphStateHasCycle
};
/**
* Initializes the role graph from the contents of the admin.system.roles collection.
*/
Status _initializeRoleGraph(OperationContext* txn);
/**
* Fetches the user document for "userName" from local storage, and stores it into "result".
*/
Status _getUserDocument(OperationContext* txn,
const UserName& userName,
BSONObj* result);
Status _getRoleDescription_inlock(const RoleName& roleName,
bool showPrivileges,
BSONObj* result);
/**
* Eventually consistent, in-memory representation of all roles in the system (both
* user-defined and built-in). Synchronized via _roleGraphMutex.
*/
RoleGraph _roleGraph;
/**
* State of _roleGraph, one of "initial", "consistent" and "has cycle". Synchronized via
* _roleGraphMutex.
*/
RoleGraphState _roleGraphState;
/**
* Guards _roleGraphState and _roleGraph.
*/
boost::mutex _roleGraphMutex;
boost::timed_mutex _authzDataUpdateLock;
};
} // namespace mongo
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