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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 <boost/scoped_ptr.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/user_name.h"
#include "mongo/s/distlock.h"
#include "mongo/stdx/functional.h"
namespace mongo {
/**
* The implementation of AuthzManagerExternalState functionality for mongos.
*/
class AuthzManagerExternalStateMongos : public AuthzManagerExternalState{
MONGO_DISALLOW_COPYING(AuthzManagerExternalStateMongos);
public:
AuthzManagerExternalStateMongos();
virtual ~AuthzManagerExternalStateMongos();
virtual Status initialize();
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 Status getAllDatabaseNames(std::vector<std::string>* dbnames);
/**
* Implements findOne of the AuthzManagerExternalState interface
*
* NOTE: The data returned from this helper may be from any config server or replica set
* node. The first config server or primary node is preferred, when available.
*/
virtual Status findOne(OperationContext* txn,
const NamespaceString& collectionName,
const BSONObj& query,
BSONObj* result);
/**
* Implements query of the AuthzManagerExternalState interface
*
* NOTE: The data returned from this helper may be from any config server or replica set
* node. The first config server or primary node is preferred, when available.
*/
virtual Status query(const NamespaceString& collectionName,
const BSONObj& query,
const BSONObj& projection,
const stdx::function<void(const BSONObj&)>& resultProcessor);
virtual Status insert(const NamespaceString& collectionName,
const BSONObj& document,
const BSONObj& writeConcern);
virtual Status update(const NamespaceString& collectionName,
const BSONObj& query,
const BSONObj& updatePattern,
bool upsert,
bool multi,
const BSONObj& writeConcern,
int* nMatched);
virtual Status remove(const NamespaceString& collectionName,
const BSONObj& query,
const BSONObj& writeConcern,
int* numRemoved);
virtual Status createIndex(const NamespaceString& collectionName,
const BSONObj& pattern,
bool unique,
const BSONObj& writeConcern);
virtual Status dropIndexes(const NamespaceString& collectionName,
const BSONObj& writeConcern);
virtual bool tryAcquireAuthzUpdateLock(const StringData& why);
virtual void releaseAuthzUpdateLock();
private:
boost::mutex _distLockGuard; // Guards access to _authzDataUpdateLock
scoped_ptr<ScopedDistributedLock> _authzDataUpdateLock;
};
} // namespace mongo
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