PairingAuthenticator implementation and plumbing.

remoting/protocol/pairing_client_authenticator.h

+// 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/memory/weak_ptr.h"
+#include "remoting/protocol/pairing_authenticator_base.h"
+
+namespace remoting {
+namespace protocol {
+
+class PairingClientAuthenticator : public PairingAuthenticatorBase {
+ public:
+  PairingClientAuthenticator(
+      const std::string& client_id,
+      const std::string& paired_secret,
+      const FetchSecretCallback& fetch_pin_callback,
+      const std::string& authentication_tag);
+  virtual ~PairingClientAuthenticator() {}
+
+ private:
+  // PairingAuthenticatorBase interface.
+  virtual void CreateV2AuthenticatorWithPIN(
+      State initial_state,
+      const SetAuthenticatorCallback& callback) OVERRIDE;
+  virtual scoped_ptr<Authenticator> CreateV2AuthenticatorFromInitialMessage(
+      const buzz::XmlElement* message) OVERRIDE;
+  virtual void AmendProtocolMessage(buzz::XmlElement* message) OVERRIDE;
+
+  void OnPinFetched(State initial_state,
+                    const SetAuthenticatorCallback& callback,
+                    const std::string& pin);
+
+  // Protocol state.
+  bool sent_client_id_;
+  std::string client_id_;
+  const std::string& paired_secret_;
+  FetchSecretCallback fetch_pin_callback_;
+  std::string authentication_tag_;
+
+  base::WeakPtrFactory<PairingClientAuthenticator> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(PairingClientAuthenticator);
+};
+
+}  // namespace protocol
+}  // namespace remoting
+
+#endif  // REMOTING_PROTOCOL_PAIRING_AUTHENTICATOR_H_