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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_PROTOCOL_PAIRING_CLIENT_AUTHENTICATOR_H_
#define REMOTING_PROTOCOL_PAIRING_CLIENT_AUTHENTICATOR_H_
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "remoting/protocol/client_authentication_config.h"
#include "remoting/protocol/pairing_authenticator_base.h"
namespace remoting {
namespace protocol {
class PairingClientAuthenticator : public PairingAuthenticatorBase {
public:
PairingClientAuthenticator(
const ClientAuthenticationConfig& client_auth_config,
const CreateBaseAuthenticatorCallback&
create_base_authenticator_callback);
~PairingClientAuthenticator() override;
// Start() or StartPaired() must be called after the authenticator is created.
// Start() handles both cases when pairing exists and when it doesn't.
// StartPaired() can only be used when pairing exists (i.e. client_id and
// pairing_secret are set in the |client_auth_config|). It is used to
// initialize the authenticator synchronously in
// NegotiatingClientAuthentitcator, while Start() may be executed
// asynchronously to fetch the PIN.
void Start(State initial_state, const base::Closure& resume_callback);
void StartPaired(State initial_state);
// Authenticator interface.
State state() const override;
private:
// PairingAuthenticatorBase overrides.
void CreateSpakeAuthenticatorWithPin(
State initial_state,
const base::Closure& resume_callback) override;
void OnPinFetched(State initial_state,
const base::Closure& resume_callback,
const std::string& pin);
ClientAuthenticationConfig client_auth_config_;
CreateBaseAuthenticatorCallback create_base_authenticator_callback_;
// Set to true if a PIN-based authenticator has been requested but has not
// yet been set.
bool waiting_for_pin_ = false;
base::WeakPtrFactory<PairingClientAuthenticator> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(PairingClientAuthenticator);
};
} // namespace protocol
} // namespace remoting
#endif // REMOTING_PROTOCOL_PAIRING_AUTHENTICATOR_H_
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