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/*
* Copyright (C) 2014 MongoDB 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 <string>
#include "mongo/base/disallow_copying.h"
#include "mongo/base/string_data.h"
namespace mongo {
class SaslClientSession;
template <typename T> class StatusWith;
/**
* Abstract class for implementing the clent-side
* of a SASL mechanism conversation.
*/
class SaslClientConversation {
MONGO_DISALLOW_COPYING(SaslClientConversation);
public:
/**
* Implements the client side of a SASL authentication mechanism.
*
* "saslClientSession" is the corresponding SASLClientSession.
* "saslClientSession" must stay in scope until the SaslClientConversation's
* destructor completes.
*
**/
explicit SaslClientConversation(SaslClientSession* saslClientSession) :
_saslClientSession(saslClientSession) {}
virtual ~SaslClientConversation();
/**
* Performs one step of the client side of the authentication session,
* consuming "inputData" and producing "*outputData".
*
* A return of Status::OK() indicates successful progress towards authentication.
* A return of !Status::OK() indicates failed authentication
*
* A return of true means that the authentication process has finished.
* A return of false means that the authentication process has more steps.
*
*/
virtual StatusWith<bool> step(StringData inputData, std::string* outputData) = 0;
protected:
SaslClientSession* _saslClientSession;
};
} // namespace mongo
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