chromium/remoting/protocol/authenticator.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef REMOTING_PROTOCOL_AUTHENTICATOR_H_
#define REMOTING_PROTOCOL_AUTHENTICATOR_H_

#include <memory>
#include <string>

#include "base/functional/callback.h"
#include "remoting/protocol/credentials_type.h"

namespace jingle_xmpp {
class XmlElement;
}  // namespace jingle_xmpp

namespace remoting::protocol {

class Authenticator;
class ChannelAuthenticator;

// Authenticator is an abstract interface for authentication protocol
// implementations. Different implementations of this interface may be used on
// each side of the connection depending of type of the auth protocol. Client
// and host will repeatedly call their Authenticators and deliver the messages
// they generate, until successful authentication is reported.
//
// Authenticator may exchange multiple messages before session is authenticated.
// Each message sent/received by an Authenticator is delivered either in a
// session description inside session-initiate and session-accept messages or in
// a session-info message. Session-info messages are used only if authenticators
// need to exchange more than one message.
class Authenticator { … };

// Factory for Authenticator instances.
class AuthenticatorFactory { … };

}  // namespace remoting::protocol

#endif  // REMOTING_PROTOCOL_AUTHENTICATOR_H_