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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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 "mongo/bson/oid.h"
#include "mongo/bson/timestamp.h"
#include "mongo/db/service_context.h"
#include "mongo/util/periodic_runner.h"
namespace mongo {
class AuthorizationManager;
class OperationContext;
/**
* Background job that runs only in mongos and periodically checks in with the config servers
* to determine whether any authorization information has changed, and if so causes the
* AuthorizationManager to throw out its in-memory cache of User objects (which contains the
* users' credentials, roles, privileges, etc).
*/
class UserCacheInvalidator {
public:
using OIDorTimestamp = stdx::variant<OID, Timestamp>;
UserCacheInvalidator(AuthorizationManager* authzManager);
/**
* Create a new UserCacheInvalidator as a decorator on the service context
* and start the background job.
*/
static void start(ServiceContext* serviceCtx, OperationContext* opCtx);
/**
* Set the period of the background job. This should only be used internally (by the
* setParameter).
*/
void setPeriod(Milliseconds period);
private:
void initialize(OperationContext* opCtx);
void run();
std::unique_ptr<PeriodicJobAnchor> _job;
AuthorizationManager* const _authzManager;
OIDorTimestamp _previousGeneration;
};
Status userCacheInvalidationIntervalSecsNotify(const int& newValue);
} // namespace mongo
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